Revert "Site Editor: Set the <title> on the list page to be same as t…

…he CPT name (#36805)" (#37270)

This reverts commit 8113d35.

lib/full-site-editing/edit-site-page.php

@@ -234,21 +234,6 @@ function register_site_editor_homepage_settings() {
 }
 add_action( 'init', 'register_site_editor_homepage_settings', 10 );
 
-/**
- * Sets the HTML <title> in the Site Editor list page to be the title of the CPT
- * being edited, e.g. 'Templates'.
- */
-function gutenberg_set_site_editor_list_page_title() {
-	global $title;
-	if ( gutenberg_is_edit_site_list_page() ) {
-		$post_type = get_post_type_object( $_GET['postType'] );
-		if ( $post_type ) {
-			$title = $post_type->labels->name;
-		}
-	}
-}
-add_action( 'load-appearance_page_gutenberg-edit-site', 'gutenberg_set_site_editor_list_page_title' );
-
 /**
  * Tells the script loader to load the scripts and styles of custom block on site editor screen.
  *