remove modified.php
remove modified.php

Summary: coverage for this is subsumed by the more extensive tests in test_subscribe.py

Reviewed By: simpkins

Differential Revision: D7128282

fbshipit-source-id: 4ff6118435c6274dafe8daa792a07cdaad498c21

wez/watchman,facebook/watchman,wez/watchman,wez/watchman,facebook/watchman,facebook/watchman,nodakai/watchman,wez/watchman,nodakai/watchman,wez/watchman,facebook/watchman,nodakai/watchman,nodakai/watchman,facebook/watchman,facebook/watchman,wez/watchman,facebook/watchman,nodakai/watchman,nodakai/watchman,wez/watchman,nodakai/watchman,facebook/watchman,wez/watchman,nodakai/watchman,nodakai/watchman,wez/watchman,facebook/watchman