Eamonn Kent <ekent@fb.com> [Wed, 06 Dec 2017 18:37:49 -0800] rev 35312
fsmonitor: remove watchman transaction and working copy change notifications
Remove working copy change and transaction notifications. We were relying
upon callbacks on transaction function. This caused issues with lock ordering.
A different approach will be adopted in a subsequent commit.
Differential Revision: https://phab.mercurial-scm.org/D1611