[nearby]Remove out of date APIs for Fast Pair.

The APIs were not deleted to support the CTS before R5 test. Now that CTS R5 (without calling the APIs) is rolled out, we can remove these APIs.

Test: -m
Fix: 286137024
Bug: 376002171
Change-Id: I0812792b445a30a9cd366b41515dd39b981ef5d3
1 file changed