Remove some SIMD recognition code.

This is supposed to be a cherry-pick of
    3f08e9bb0dfbe9a51e1b378ae20a9338358349eb
but due to branch divergence it was created from scratch.

Test: : test-art-host,target
Bug: 118673201
Change-Id: I2376a491df354766290c5b1bb6efd827f67aca2c
Merged-In: I7f00315c61ed99723236283bc39a4c7fb279df47
24 files changed