Revert "JPEG decoding arm64 optimization" This reverts commit 1ace0044a8fbb3b8b107d699879042f056ce97a6. This change broke the AOSP N9 build: external/jpeg/jsimd_arm64_neon.S:33:1: error: unknown directive .arch armv8-a+fp+simd ^ Change-Id: I8a75667268a52efd3a91cd1e9b74add565fae2be