Index: wp-admin/includes/nav-menu.php
===================================================================
--- wp-admin/includes/nav-menu.php	(revision 16451)
+++ wp-admin/includes/nav-menu.php	(working copy)
@@ -668,7 +668,7 @@
 			}
 			?>
 			<p class="quick-search-wrap">
-				<input type="text" class="quick-search regular-text input-with-default-title" title="<?php esc_attr_e('Search'); ?>" value="<?php echo $searched; ?>" name="quick-search-posttype-<?php echo $post_type_name; ?>" />
+				<input type="text" class="quick-search input-with-default-title" title="<?php esc_attr_e('Search'); ?>" value="<?php echo $searched; ?>" name="quick-search-posttype-<?php echo $post_type_name; ?>" />
 				<img class="waiting" src="<?php echo esc_url( admin_url( 'images/wpspin_light.gif' ) ); ?>" alt="" />
 				<?php submit_button( __( 'Search' ), 'quick-search-submit button-secondary hide-if-js', 'submit', false ); ?>
 			</p>
@@ -895,7 +895,7 @@
 			}
 			?>
 			<p class="quick-search-wrap">
-				<input type="text" class="quick-search regular-text input-with-default-title" title="<?php esc_attr_e('Search'); ?>" value="<?php echo $searched; ?>" name="quick-search-taxonomy-<?php echo $taxonomy_name; ?>" />
+				<input type="text" class="quick-search input-with-default-title" title="<?php esc_attr_e('Search'); ?>" value="<?php echo $searched; ?>" name="quick-search-taxonomy-<?php echo $taxonomy_name; ?>" />
 				<img class="waiting" src="<?php echo esc_url( admin_url( 'images/wpspin_light.gif' ) ); ?>" alt="" />
 				<?php submit_button( __( 'Search' ), 'quick-search-submit button-secondary hide-if-js', 'submit', false ); ?>
 			</p>