Block editor: Remove hotfix for Gutenberg v19.0, v20.0 and v20.1

projects/packages/jetpack-mu-wpcom/changelog/remove-block-editor-hotfix

@@ -0,0 +1,4 @@
+Significance: minor
+Type: removed
+
+Block editor: Remove hotfix for Gutenberg v19.0, v20.0 and v20.1

projects/packages/jetpack-mu-wpcom/src/features/wpcom-hotfixes/wpcom-hotfixes.php

@@ -50,39 +50,3 @@ function ( $content ) {
 		1
 	);
 }
-
-/**
- * Overrides the `wp-block-editor` script with a hotfix to prevent a performance issue present in
- * Gutenberg v19.0, v20.0, and v20.1 (see https://github.com/WordPress/gutenberg/issues/68875).
- *
- * Our custom script has been generated by applying the fix introduced in Gutenberg v20.2
- * (see https://github.com/WordPress/gutenberg/pull/68898) in a local Gutenberg environment and
- * running `npm run build` to extract the fixed `wp-block-editor` script.
- *
- * @param WP_Scripts $scripts WP_Scripts instance.
- */
-function wpcom_fix_performance_issue_block_editor_v19_9_v20_0_v20_1( $scripts ) {
-	if ( ! defined( 'GUTENBERG_VERSION' ) ) {
-		return;
-	}
-
-	if ( ! in_array( GUTENBERG_VERSION, array( '19.9.0', '20.0.0', '20.1.0' ), true ) ) {
-		return;
-	}
-
-	$path         = gutenberg_dir_path() . 'build/block-editor/index.min.js';
-	$handle       = 'wp-block-editor';
-	$asset_file   = substr( $path, 0, - ( strlen( '.js' ) ) ) . '.asset.php';
-	$asset        = file_exists( $asset_file ) ? require $asset_file : null;
-	$dependencies = $asset['dependencies'] ?? array();
-	$version      = $asset['version'] ?? GUTENBERG_VERSION;
-	gutenberg_override_script(
-		$scripts,
-		$handle,
-		plugins_url( 'wp-block-editor-' . GUTENBERG_VERSION . '-hotfix.min.js', __FILE__ ),
-		$dependencies,
-		$version,
-		true
-	);
-}
-add_action( 'wp_default_scripts', 'wpcom_fix_performance_issue_block_editor_v19_9_v20_0_v20_1', 11 );