Remove ENABLE_TIMESTAMPS to ensure reproducible builds.

Bug: 24349363

The use of __DATE__ makes this build hard to reproduce/diff.

Change-Id: I7d2b05bef53eac7084918f0781107bb920285bdf
(cherry picked from commit 3c19f5eec3bfcd1fcfda72cd02585569b42507a3)
2 files changed