commit b9214820bb9348e54fcb5013ae7ca8cc1c793141
author Yabin Cui <yabinc@google.com> Wed Nov 01 15:03:38 2017 -0700
committer Yabin Cui <yabinc@google.com> Wed Nov 01 15:27:12 2017 -0700
tree d19eb41018a9f1a6199be2a0d3bfb7e3626d45e4
parent 29c0043b5334432afc01584f435585c2d2da49fe

simpleperf: avoid warning for default freq.

When max_freq = 1800, and run `simpleperf record -e cpu-cycles -f 1000`,
it prints warning for default freq:
  Sample frequency 4000 is out of range [1, 1800], adjust it to 1800

This patch removes the unproper warning.
Also remove AdjustSampleFrequency() because the freq will
be adjusted in event_fd.cpp.

Bug: http://b/29574526
Test: run `simpleperf record -e cpu-cycles -f 1000`.
Test: run simpleperf_unit_test.
Change-Id: Ieed106fb539b7deb9fee3208f00228c6e0520acb