Implement deleteAidingData and simulate TTFF Bug: 197671205 Test: atest GnssLocationRateChangeTest Test: atest GnssMeasurementWhenNoLocationTest (cherry picked from https://googleplex-android-review.googlesource.com/q/commit:ef24c7a10dff0e20048d59026013b507cf0fcbfb) Merged-In: I9b6a196a1acc24ecb30b0706b4eceba08dad90e9 Change-Id: I9b6a196a1acc24ecb30b0706b4eceba08dad90e9