publish: avoid double removal of dev-supplied reference binary

fdroidserver/publish.py

@@ -248,6 +248,9 @@ def main():
                 if compare_result:
                     logging.error("...verification failed - publish skipped : "
                                   "{result}".format(result=compare_result))
+                    os.remove(srcapk)
+                    logging.debug('remvoed developer supplied reference binary: {path}'
+                                  .format(path=srcapk))
                 else:
                     # Success! So move the downloaded file to the repo, and remove
                     # our built version.