Gruntfile: verify:source-maps: restore for core-data.

Yjs was bundled by accident in the `core-data` package, so we had to ignore the source map verification in an earlier package sync ([61009]). This can now be restored because the issue was fixed in WordPress/gutenberg#72503.

Fixes #64120.

git-svn-id: https://develop.svn.wordpress.org/trunk@61184 602fd350-edb4-49c9-b593-d223f7449a82

Author: ellatrix

Gruntfile.js

@@ -1785,9 +1785,6 @@ module.exports = function(grunt) {
 		const ignoredFiles = [
 			'build/wp-includes/js/dist/components.js',
 			'build/wp-includes/js/dist/data.js',
-			// We have a problem where Yjs is being bundled in core-data.
-			// Ignoring this file until we find a solution.
-			'build/wp-includes/js/dist/core-data.js',
 		];
 		const files = buildFiles.reduce( ( acc, path ) => {
 			// Skip excluded paths and any path that isn't a file.