perf: Servers don't need to call close on r.Body.
perf: Servers don't need to call close on r.Body.

BUG=skia:

Change-Id: I1f966185e84972aeacbef1a6b003d90104cbc642
Reviewed-on: https://skia-review.googlesource.com/6227
Reviewed-by: Ben Wagner <3ef7217be91069877d94f7907ce5479000772cd3@google.com>
Commit-Queue: Joe Gregorio <b9cf2471ff6d33504cafe8e6f356b732b2cadced@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot