Revert "media-libs/arc-mesa: Add support for multilib"

This reverts commit 502a21576d2ee14e88ade2afab275e2f03da35d8.

Reason for revert:
Unable to start surfaceflinger - /vendor/lib64/egl now has the
libraries when trying to run 32-bit ABI Android.

BUG=chromium:746548
TEST=Start x86 Android on a 64-bit Intel device

Change-Id: I3e46de994549e266a8f057f11c01a5066063e673
Reviewed-on: https://chromium-review.googlesource.com/578669
Reviewed-by: Luis Hector Chavez <lhchavez@chromium.org>
Tested-by: Josh Horwich <jhorwich@chromium.org>
1 file changed