tree 23cacae5b0889b3dad9df82fbd1a49a2dd01bde7
parent e5743ef73f3a1911f6e2124e9ec3a6d671f6e378
author Elliott Hughes <enh@google.com> 1416344254 -0800
committer Elliott Hughes <enh@google.com> 1416344254 -0800

Kill unused ARCH_* defines.

No one's using ARCH_AARCH64 or AARCH_MIPS64 yet, and ARCH_PPC was always more
aspirational than real.

Change-Id: I07c6cbad6eb0917c4c24848a98c3bc9a3fe72db6