Remove Focal repositories

Change-Id: I6e3b9dae36743246ccd6924a8d694e62eafc80da
Update AOSP repositories to android-4.3_r3.1

Change-Id: I36363369e987039f869436fc822e030725f0512d
Merge remote-tracking branch 'cm/cm-10.2' into cm-10.2

Conflicts:
	default.xml
Revert "Remove Focal repositories"

This reverts commit 17a3fbd627ebb8a3a984150e9b0b18c7d76aa7aa.

Conflicts:
	default.xml