Remove some ARMv5 cruft.

Change-Id: I95dcfd9dff8db25b9419b8ef862e3b9b70927a0c
Merge "Remove some ARMv5 cruft."
Remove the sole reference to __ARM_HAVE_BLX.

Every ARM processor we run on has blx.

Change-Id: I633984d208d8a1995b9595521352e0b16413837c
Merge "Remove the sole reference to __ARM_HAVE_BLX."
Merge branch 'master' of https://android.googlesource.com/platform/dalvik into HEAD