Remove 32-bit cross support from LLVM cmake build
Remove 32-bit cross support from LLVM cmake build

We don't use 32-bit cross builds by default anymore, and the cmake build
is just for our desktops. This will also let us remove a localmod in LLVM.

BUG=None
R=jvoung@chromium.org

Review URL: https://codereview.chromium.org/617763005

git-svn-id: 721b910a23eff8a86f00c8fd261a7587cddf18f8@13808 fcba33aa-ac0c-11dd-b9e7-8d5594d729c2

sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client,sbc100/native_client