Revert local GPS for now

Revert "qcom_gps: retry XTRA upload when the engine is busy"

This reverts commit 81c10d54a4f2e7b3c6e42045a05408f8e02a4718.

Revert "qcom_gps: Release lock when requesting XTRA data, oops."

This reverts commit 3c7cc151de375a7e449fcc0158b89f6b95055ee2.

Revert "Remove AMM_VERSION 1240 ifdefs"

This reverts commit 037d399c43be9f555d318c5966f783a46306af96.

Revert "add old librpc for gps"

This reverts commit c315e1f9fb5d0d6a44cb9f17fe51f4542a8e78e7.

Revert "Let's try zinx's gps hal"

This reverts commit 0f8cca5e0490be8949a57286cc32536506fcc0ee.