diff --git a/tests/phpunit/includes/abstract-testcase.php b/tests/phpunit/includes/abstract-testcase.php
index fa667f99baacc..1a60c630f1b7d 100644
--- a/tests/phpunit/includes/abstract-testcase.php
+++ b/tests/phpunit/includes/abstract-testcase.php
@@ -1350,29 +1350,16 @@ public function unlink( $file ) {
 	 * Does not delete files if their paths are set in the `$ignore_files` property.
 	 *
 	 * @since 4.0.0
-	 * @since 6.1.0 Removes the empty directory if there are no files left.
 	 *
 	 * @param string $path Directory path.
 	 */
 	public function rmdir( $path ) {
-		if ( ! is_dir( $path ) ) {
-			return;
-		}
-
 		$files = $this->files_in_dir( $path );
 		foreach ( $files as $file ) {
 			if ( ! in_array( $file, self::$ignore_files, true ) ) {
 				$this->unlink( $file );
 			}
 		}
-
-		/*
-		 * If there were no ignored files, remove the empty directory.
-		 * If there are any nested empty directories, remove them too.
-		 */
-		if ( ! array_intersect( $files, self::$ignore_files ) ) {
-			$this->delete_folders( $path );
-		}
 	}
 
 	/**
diff --git a/tests/phpunit/tests/multisite/cleanDirsizeCache.php b/tests/phpunit/tests/multisite/cleanDirsizeCache.php
index a777feca8a37e..df38ee33d1645 100644
--- a/tests/phpunit/tests/multisite/cleanDirsizeCache.php
+++ b/tests/phpunit/tests/multisite/cleanDirsizeCache.php
@@ -295,6 +295,8 @@ public function test_5_5_transient_structure_compat() {
 
 			// Cleanup.
 			$this->remove_added_uploads();
+			rmdir( $upload_dir['basedir'] . '/2/1' );
+
 			restore_current_blog();
 		}
 
diff --git a/tests/phpunit/tests/rest-api/rest-plugins-controller.php b/tests/phpunit/tests/rest-api/rest-plugins-controller.php
index 60b74ddd283ca..3143c6a761e63 100644
--- a/tests/phpunit/tests/rest-api/rest-plugins-controller.php
+++ b/tests/phpunit/tests/rest-api/rest-plugins-controller.php
@@ -84,7 +84,10 @@ public static function wpTearDownAfterClass() {
 
 	public function tear_down() {
 		if ( file_exists( WP_PLUGIN_DIR . '/test-plugin/test-plugin.php' ) ) {
+			// Remove plugin files.
 			$this->rmdir( WP_PLUGIN_DIR . '/test-plugin' );
+			// Delete empty directory.
+			rmdir( WP_PLUGIN_DIR . '/test-plugin' );
 		}
 
 		if ( file_exists( DIR_TESTDATA . '/link-manager.zip' ) ) {
@@ -92,7 +95,10 @@ public function tear_down() {
 		}
 
 		if ( file_exists( WP_PLUGIN_DIR . '/link-manager/link-manager.php' ) ) {
+			// Remove plugin files.
 			$this->rmdir( WP_PLUGIN_DIR . '/link-manager' );
+			// Delete empty directory.
+			rmdir( WP_PLUGIN_DIR . '/link-manager' );
 		}
 
 		parent::tear_down();