animkeyframe: remove log2 workaround for Android
animkeyframe: remove log2 workaround for Android

log2 is supported since Android 4.3 (API level 18) according to
https://android.googlesource.com/platform/bionic/+/master/docs/status.md

Signed-off-by: Clément Bœsch <51e69892ab49df85c6230ccc57f8e1d1606caccc@pkh.me>

gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl