Revert "Add support for Samsung extended AGPS"

This reverts commit 9400fc87143a86746550bbcf47b10ba8d7dbbe9b.
It wasn't supposed to be pushed or merged, since it might depend
on not yet merged commits in CM repos that we don't control.

Change-Id: I4263b91ee3701105b610a99e479e772465de2be6