Revert "Roll to GCC 4.9.2"

This reverts commit 5cb82a6fb606ab664117d9a4cbb7f91f6d984594.

Change-Id: I44a6fb0fded9c7bc4515af2d0527b7204185e25c
Reviewed-on: https://chromium-review.googlesource.com/255001
Reviewed-by: Luis Lozano <[email protected]>
Commit-Queue: Luis Lozano <[email protected]>
Tested-by: Luis Lozano <[email protected]>
741 files changed