Customizer: Remove the no more used `add-menu-item-loading` spinner.

Also makes more room for longer translations.

Props dipali.dhole27@gmail.com.
Fixes #34342.
Built from https://develop.svn.wordpress.org/trunk@35396


git-svn-id: http://core.svn.wordpress.org/trunk@35360 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/customize/class-wp-customize-nav-menu-control.php

@@ -56,7 +56,6 @@ class WP_Customize_Nav_Menu_Control extends WP_Customize_Control {
 			<span class="reorder-done"><?php _ex( 'Done', 'Cancel reordering menu items in Customizer' ); ?></span>
 		</button>
 		<p class="screen-reader-text" id="reorder-items-desc-{{ data.menu_id }}"><?php _e( 'When in reorder mode, additional controls to reorder menu items will be available in the items list above.' ); ?></p>
-		<span class="add-menu-item-loading spinner"></span>
 		<span class="menu-delete-item">
 			<button type="button" class="not-a-button menu-delete">
 				<?php _e( 'Delete menu' ); ?> <span class="screen-reader-text">{{ data.menu_name }}</span>

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-beta1-35395';
+$wp_version = '4.4-beta1-35396';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.