Miscellaneous code clean-ups.

css/views-admin.css

drush/views.drush.inc

includes/ajax.inc

js/views-admin.js

lib/Drupal/views/Plugin/views/query/QueryInterface.php

lib/Drupal/views/Plugin/views/query/QueryPluginBase.php

lib/Drupal/views/Plugin/views/query/Sql.php

lib/Drupal/views/TempStore/TempStore.php

lib/Drupal/views/Tests/Field/HandlerFieldFieldTest.php

lib/Drupal/views/Tests/Handler/ArgumentStringTest.php

lib/Drupal/views/Tests/ViewStorageTest.php

lib/Drupal/views/ViewStorageInterface.php

lib/Views/comment/Plugin/views/filter/NcsLastUpdated.php

lib/Views/comment/Plugin/views/row/Rss.php

lib/Views/comment/Plugin/views/row/View.php

lib/Views/field/Plugin/views/argument/FieldList.php

lib/Views/field/Plugin/views/argument/ListString.php

lib/Views/file/Plugin/views/field/File.php

lib/Views/node/Plugin/views/argument/UidRevision.php

lib/Views/node/Plugin/views/field/Path.php