MAGETWO-71257: Need to disable module output by configuration

 - Fix DisableOutput deprecation tags and hide advanced config in UI.

Author: Eric Bohanon

app/code/Magento/Backend/etc/adminhtml/system.xml

@@ -20,7 +20,7 @@
         @deprecated Magento does not support custom disabling/enabling modules output since 2.2.0 version.
         Section 'Advanced' was disabled. This section will be removed from code in one release.
         -->
-        <section id="advanced" translate="label" type="text" sortOrder="910" showInDefault="1" showInWebsite="1" showInStore="1">
+        <section id="advanced" translate="label" type="text" sortOrder="910" showInDefault="0" showInWebsite="0" showInStore="0">
             <label>Advanced</label>
             <tab>advanced</tab>
             <resource>Magento_Backend::advanced</resource>

app/code/Magento/Config/Block/System/Config/Form/Fieldset/Modules/DisableOutput.php

@@ -10,32 +10,52 @@
  * on the store settings page.
  *
  * @method \Magento\Config\Block\System\Config\Form getForm()
- * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+ * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+ * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+ * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+ * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+ * issues that will be addressed in future releases.
  * @api
  */
 class DisableOutput extends \Magento\Config\Block\System\Config\Form\Fieldset
 {
     /**
      * @var \Magento\Framework\DataObject
-     * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+     * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+     * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+     * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+     * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+     * issues that will be addressed in future releases.
      */
     protected $_dummyElement;
 
     /**
      * @var \Magento\Config\Block\System\Config\Form\Field
-     * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+     * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+     * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+     * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+     * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+     * issues that will be addressed in future releases.
      */
     protected $_fieldRenderer;
 
     /**
      * @var array
-     * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+     * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+     * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+     * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+     * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+     * issues that will be addressed in future releases.
      */
     protected $_values;
 
     /**
      * @var \Magento\Framework\Module\ModuleListInterface
-     * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+     * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+     * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+     * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+     * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+     * issues that will be addressed in future releases.
      */
     protected $_moduleList;
 
@@ -59,7 +79,11 @@ public function __construct(
 
     /**
      * {@inheritdoc}
-     * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+     * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+     * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+     * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+     * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+     * issues that will be addressed in future releases.
      */
     public function render(\Magento\Framework\Data\Form\Element\AbstractElement $element)
     {
@@ -88,7 +112,11 @@ public function render(\Magento\Framework\Data\Form\Element\AbstractElement $ele
     }
 
     /**
-     * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+     * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+     * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+     * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+     * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+     * issues that will be addressed in future releases.
      * @return \Magento\Framework\DataObject
      */
     protected function _getDummyElement()
@@ -100,7 +128,11 @@ protected function _getDummyElement()
     }
 
     /**
-     * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+     * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+     * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+     * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+     * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+     * issues that will be addressed in future releases.
      * @return \Magento\Config\Block\System\Config\Form\Field
      */
     protected function _getFieldRenderer()
@@ -114,7 +146,11 @@ protected function _getFieldRenderer()
     }
 
     /**
-     * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+     * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+     * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+     * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+     * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+     * issues that will be addressed in future releases.
      * @return array
      */
     protected function _getValues()
@@ -131,7 +167,11 @@ protected function _getValues()
     /**
      * @param \Magento\Framework\Data\Form\Element\Fieldset $fieldset
      * @param string $moduleName
-     * @deprecated 100.2.0 Magento does not support custom disabling/enabling module output since 2.2.0 version
+     * @deprecated 100.2.0 Magento does not support disabling/enabling modules output from the Admin Panel since 2.2.0
+     * version. Module output can still be enabled/disabled in configuration files. However, this functionality should
+     * not be used in future development. Module design should explicitly state dependencies to avoid requiring output
+     * disabling. This functionality will temporarily be kept in Magento core, as there are unresolved modularity
+     * issues that will be addressed in future releases.
      * @return mixed
      */
     protected function _getFieldHtml($fieldset, $moduleName)