Delete unneeded scoped_nsautoreleasepool.h includes.

Presumably, people keep copying stuff from other files.

BUG=none
TEST=everything still builds

Review URL: http://codereview.chromium.org/1519009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@43024 0039d316-1c4b-4281-b951-d872f2087c98
5 files changed