AudioPolicy: Reuse SortedVector comparison from AudioProfile

Operation for comparing sorted vectors was defined twice in APM code:
once in AudioProfile.h as operator==, then in APM as 'vectorsEqual'
method. Remove the latter and use the operator instead.

Test: make
Change-Id: I0697843aabb13539b7b552773d96dbb7fb56daa4
4 files changed