remove __ARM_FEATURE_CRC32 workaround
remove __ARM_FEATURE_CRC32 workaround

Just noticed that this is no longer set for -arch arm64
(but is, correctly, for -arch arm64e).

Change-Id: I607bb052ce67f91186852156d832d97eed33788b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/313239
Reviewed-by: Herb Derby <9e12a3d2bbf73546e47cc9958f6ba8f3215b7eaf@google.com>
Commit-Queue: Mike Klein <14574f09dfa9b4e14759b88c3426a495a0e627b0@google.com>

aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,google/skia,google/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,google/skia,google/skia,aosp-mirror/platform_external_skia,google/skia,google/skia