Backport changes from Gutenberg PR 72485.

The PR changed the exports from the @wordpress/interactivity package.
It removed the `debug` WordPress export module completely.

This requires some changes to the special way the debug script module
was being registered.

See WordPress/gutenberg#72485.

Author: sirreal

src/wp-includes/script-modules.php

@@ -159,30 +159,11 @@ function wp_default_script_modules() {
 		/*
 		 * Build the WordPress Script Module ID from the file name.
 		 * Prepend `@wordpress/` and remove extensions and `/index` if present:
-		 *   - interactivity/index.min.js  => @wordpress/interactivity
-		 *   - interactivity/debug.min.js  => @wordpress/interactivity/debug
-		 *   - block-library/query/view.js => @wordpress/block-library/query/view
+		 *   - interactivity/index.min.js or interactivity/index.js => @wordpress/interactivity
+		 *   - block-library/query/view.min.js or block-library/query/view.js => @wordpress/block-library/query/view
 		 */
 		$script_module_id = '@wordpress/' . preg_replace( '~(?:/index)?(?:\.min)?\.js$~D', '', $file_name, 1 );
 
-		switch ( $script_module_id ) {
-			/*
-			 * Interactivity exposes two entrypoints, "/index" and "/debug".
-			 * "/debug" should replace "/index" in development.
-			 */
-			case '@wordpress/interactivity/debug':
-				if ( ! SCRIPT_DEBUG ) {
-					continue 2;
-				}
-				$script_module_id = '@wordpress/interactivity';
-				break;
-			case '@wordpress/interactivity':
-				if ( SCRIPT_DEBUG ) {
-					continue 2;
-				}
-				break;
-		}
-
 		/*
 		 * The Interactivity API is designed with server-side rendering as its primary goal, so all of its script modules
 		 * should be loaded with low fetchpriority and printed in the footer since they should not be needed in the