Framework: Remove SamplingProfiler

Remove the very old and unsupported SamplingProfilerIntegration. This
CL removes the code parts.

Bug: 37272346
Test: m
Test: Device boots
Merged-In: I64d77244b5816ef1f605d19530b96be38f5c1bc6
Change-Id: I64d77244b5816ef1f605d19530b96be38f5c1bc6