Remove superfluous newlines as per PHPCBF

exceptions/updates/MDTooManyFilesUploadException.php

@@ -12,7 +12,6 @@
  * Custom exception class for wrongly used files.
  */
 final class MDTooManyFilesUploadException extends Exception {
-
     /**
      * Error message.
      *
@@ -24,5 +23,4 @@ public function errorMessage() {
         return $errorMsg;
 
     }
-
 }