Eliminate common/concurrency/ThreadLocal.h
Eliminate common/concurrency/ThreadLocal.h

Summary: It's been deprecated for a long time, so eliminate it.

Reviewed By: yfeldblum

Differential Revision: D7527437

fbshipit-source-id: 0a669cc7bff79a362ea90addad0e4f7f762365e9

facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift,facebook/fbthrift