MAGETWO-40015: Remove Schema & Data Upgrades

Author: akaplya

app/code/Magento/Backend/etc/module.xml

@@ -6,7 +6,7 @@
  */
 -->
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../lib/internal/Magento/Framework/Module/etc/module.xsd">
-    <module name="Magento_Backend" setup_version="2.0.0.0">
+    <module name="Magento_Backend" setup_version="2.0.0">
         <sequence>
             <module name="Magento_Directory"/>
         </sequence>

app/code/Magento/Indexer/Setup/InstallData.php

@@ -15,6 +15,7 @@
 use Magento\Indexer\Model\Resource\Indexer\State\CollectionFactory;
 use Magento\Indexer\Model\Indexer\State;
 use Magento\Indexer\Model\Indexer\StateFactory;
+use Magento\Framework\Setup\InstallDataInterface;
 
 /**
  * @codeCoverageIgnore