diff --git a/wp-admin/includes/plugin.php b/wp-admin/includes/plugin.php
index 1236723f8d..1a9889d3d3 100644
--- a/wp-admin/includes/plugin.php
+++ b/wp-admin/includes/plugin.php
@@ -194,17 +194,6 @@ function get_plugin_files( $plugin ) {
 	$plugin_file = WP_PLUGIN_DIR . '/' . $plugin;
 	$dir = dirname( $plugin_file );
 
-	$data = get_plugin_data( $plugin_file );
-	$label = isset( $data['Version'] )
-		? sanitize_key( 'files_' . $plugin . '-' . $data['Version'] )
-		: sanitize_key( 'files_' . $plugin );
-	$transient_key = substr( $label, 0, 29 ) . md5( $label );
-
-	$plugin_files = get_transient( $transient_key );
-	if ( false !== $plugin_files ) {
-		return $plugin_files;
-	}
-
 	$plugin_files = array( plugin_basename( $plugin_file ) );
 
 	if ( is_dir( $dir ) && WP_PLUGIN_DIR !== $dir ) {
@@ -225,8 +214,6 @@ function get_plugin_files( $plugin ) {
 		$plugin_files = array_values( array_unique( $plugin_files ) );
 	}
 
-	set_transient( $transient_key, $plugin_files, HOUR_IN_SECONDS );
-
 	return $plugin_files;
 }
 
diff --git a/wp-includes/class-wp-theme.php b/wp-includes/class-wp-theme.php
index 171d8b6c58..d98085a3df 100644
--- a/wp-includes/class-wp-theme.php
+++ b/wp-includes/class-wp-theme.php
@@ -984,34 +984,10 @@ final class WP_Theme implements ArrayAccess {
 	 *               being absolute paths.
 	 */
 	public function get_files( $type = null, $depth = 0, $search_parent = false ) {
-		// get and cache all theme files to start with.
-		$label = sanitize_key( 'files_' . $this->cache_hash . '-' . $this->get( 'Version' ) );
-		$transient_key = substr( $label, 0, 29 ) . md5( $label );
+		$files = (array) self::scandir( $this->get_stylesheet_directory(), $type, $depth );
 
-		$all_files = get_transient( $transient_key );
-		if ( false === $all_files ) {
-			$all_files = (array) self::scandir( $this->get_stylesheet_directory(), null, -1 );
-
-			if ( $search_parent && $this->parent() ) {
-				$all_files += (array) self::scandir( $this->get_template_directory(), null, -1 );
-			}
-
-			set_transient( $transient_key, $all_files, HOUR_IN_SECONDS );
-		}
-
-		// Filter $all_files by $type & $depth.
-		$files = array();
-		if ( $type ) {
-			$type = (array) $type;
-			$_extensions = implode( '|', $type );
-		}
-		foreach ( $all_files as $key => $file ) {
-			if ( $depth >= 0 && substr_count( $key, '/' ) > $depth ) {
-				continue; // Filter by depth.
-			}
-			if ( ! $type || preg_match( '~\.(' . $_extensions . ')$~', $file ) ) { // Filter by type.
-				$files[ $key ] = $file;
-			}
+		if ( $search_parent && $this->parent() ) {
+			$files += (array) self::scandir( $this->get_template_directory(), $type, $depth );
 		}
 
 		return $files;
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 3a9ad7a36d..20a5523ba9 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.0-alpha-42228';
+$wp_version = '5.0-alpha-42242';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.