Ana dizine atıp çalıştırın hocam

$uploadDirectoryPath = "wp-content/uploads/*/*/";

$images = glob( $uploadDirectoryPath . "*{1500x88.jpg,1400x89.jpg}", GLOB_BRACE );

foreach ( $images as $image ) {
@unlink( $image );
echo "Silinen resim: " . $image;
}