Clean up code style - remove trailing whitespace and simplify logic

Co-authored-by: swissspidy <841956+swissspidy@users.noreply.github.com>

Author: Copilot

src/Core_Command.php

@@ -1708,15 +1708,15 @@ private function get_old_files_list() {
 	 */
 	private function remove_old_files_from_list( $files ) {
 		$count = 0;
-		
+
 		// Cache ABSPATH realpath for performance
 		$abspath_realpath = realpath( ABSPATH );
 		if ( false === $abspath_realpath ) {
 			WP_CLI::debug( 'Failed to resolve ABSPATH realpath', 'core' );
 			return $count;
 		}
 		$abspath_realpath_trailing = trailingslashit( $abspath_realpath );
-		
+
 		foreach ( $files as $file ) {
 			// wp-content should be considered user data
 			if ( 0 === stripos( $file, 'wp-content' ) ) {
@@ -1727,17 +1727,17 @@ private function remove_old_files_from_list( $files ) {
 
 			// Validate the path is within ABSPATH
 			$file_realpath = realpath( $file_path );
-			if ( false !== $file_realpath ) {
-				if ( 0 !== strpos( $file_realpath, $abspath_realpath_trailing ) ) {
-					WP_CLI::debug( "Skipping file outside of ABSPATH: {$file}", 'core' );
-					continue;
-				}
-			} else {
+			if ( false === $file_realpath ) {
 				// Skip files with invalid paths
 				WP_CLI::debug( "Skipping file with invalid path: {$file}", 'core' );
 				continue;
 			}
 
+			if ( 0 !== strpos( $file_realpath, $abspath_realpath_trailing ) ) {
+				WP_CLI::debug( "Skipping file outside of ABSPATH: {$file}", 'core' );
+				continue;
+			}
+
 			// Handle both files and directories
 			if ( file_exists( $file_path ) ) {
 				if ( is_dir( $file_path ) ) {