Revert "Fix Merge conflict (Add heart rate monitor ...to sensors.h)"

This reverts commit c6854530e1c707d86e4c2203354e66aa2ee8fdf4.

Turns out more work in klp-something-something is needed.
So this needs undoing to get the builds fixed.

Change-Id: Ic38e2b312fa48c4489f54fc688fb0f1114c13d4a
1 file changed