MAGETWO-88054: Move declarative setup from setup to framework

Author: rganin

setup/src/Magento/Setup/Console/Command/InstallCommand.php

@@ -68,16 +68,6 @@ class InstallCommand extends AbstractSetupCommand
      */
     const INPUT_KEY_INTERACTIVE_SETUP_SHORTCUT = 'i';
 
-    /**
-     * Parameter says that in this mode all destructive operations, like column removal will be dumped
-     */
-    const INPUT_KEY_SAFE_INSTALLER_MODE = 'safe-mode';
-
-    /**
-     * Parameter allows to restore data, that was dumped with safe mode before
-     */
-    const INPUT_KEY_DATA_RESTORE = 'data-restore';
-
     /**
      * Regex for sales_order_increment_prefix validation.
      */