Index: src/wp-admin/includes/class-wp-media-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-media-list-table.php	(revision 28260)
+++ src/wp-admin/includes/class-wp-media-list-table.php	(working copy)
@@ -133,8 +133,6 @@
 		$posts_columns['title'] = _x( 'File', 'column name' );
 		$posts_columns['author'] = __( 'Author' );
 
-		$taxonomies = array();
-
 		$taxonomies = get_taxonomies_for_attachments( 'objects' );
 		$taxonomies = wp_filter_object_list( $taxonomies, array( 'show_admin_column' => true ), 'and', 'name' );
 
@@ -377,7 +375,6 @@
 			$taxonomy = false;
 
 		if ( $taxonomy ) {
-			$taxonomy_object = get_taxonomy( $taxonomy );
 			echo '<td ' . $attributes . '>';
 			if ( $terms = get_the_terms( $post->ID, $taxonomy ) ) {
 				$out = array();
Index: src/wp-admin/includes/class-wp-ms-users-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-ms-users-list-table.php	(revision 28260)
+++ src/wp-admin/includes/class-wp-ms-users-list-table.php	(working copy)
@@ -90,7 +90,6 @@
 		$super_admins = get_super_admins();
 		$total_admins = count( $super_admins );
 
-		$current_role = false;
 		$class = $role != 'super' ? ' class="current"' : '';
 		$role_links = array();
 		$role_links['all'] = "<a href='" . network_admin_url('users.php') . "'$class>" . sprintf( _nx( 'All <span class="count">(%s)</span>', 'All <span class="count">(%s)</span>', $total_users, 'users' ), number_format_i18n( $total_users ) ) . '</a>';
Index: src/wp-admin/includes/class-wp-posts-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-posts-list-table.php	(revision 28260)
+++ src/wp-admin/includes/class-wp-posts-list-table.php	(working copy)
@@ -272,8 +272,6 @@
 		if ( post_type_supports( $post_type, 'author' ) )
 			$posts_columns['author'] = __( 'Author' );
 
-		$taxonomies = array();
-
 		$taxonomies = get_object_taxonomies( $post_type, 'objects' );
 		$taxonomies = wp_filter_object_list( $taxonomies, array( 'show_admin_column' => true ), 'and', 'name' );
 
Index: src/wp-admin/includes/class-wp-terms-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-terms-list-table.php	(revision 28260)
+++ src/wp-admin/includes/class-wp-terms-list-table.php	(working copy)
@@ -161,8 +161,6 @@
 		// convert it to table rows
 		$count = 0;
 
-		$terms = array();
-
 		if ( is_taxonomy_hierarchical( $taxonomy ) && !isset( $orderby ) ) {
 			// We'll need the full set of terms then.
 			$args['number'] = $args['offset'] = 0;
@@ -189,7 +187,6 @@
 			$terms = get_terms( $taxonomy, $args );
 			foreach ( $terms as $term )
 				$this->single_row( $term );
-			$count = $number; // Only displaying a single page.
 		}
 	}
 
Index: src/wp-admin/includes/class-wp-users-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-users-list-table.php	(revision 28260)
+++ src/wp-admin/includes/class-wp-users-list-table.php	(working copy)
@@ -147,7 +147,6 @@
 		$avail_roles =& $users_of_blog['avail_roles'];
 		unset($users_of_blog);
 
-		$current_role = false;
 		$class = empty($role) ? ' class="current"' : '';
 		$role_links = array();
 		$role_links['all'] = "<a href='$url'$class>" . sprintf( _nx( 'All <span class="count">(%s)</span>', 'All <span class="count">(%s)</span>', $total_users, 'users' ), number_format_i18n( $total_users ) ) . '</a>';
@@ -158,7 +157,6 @@
 			$class = '';
 
 			if ( $this_role == $role ) {
-				$current_role = $role;
 				$class = ' class="current"';
 			}