simpleperf: fix confusing recursive call.

ART may call from an interpreted Java method into its corresponding JIT
method. This creates a confusing callchain when we remove art frames and
convert JIT frames to interpreted dex frames.

To fix it, we remove the JIT frame and only show the dex frame.

Bug: 175163225
Test: run simpleperf_unit_test.
Test: run simpleperf manually.
Change-Id: Ic892ba07eec193c974ca2bad1b87dfb472cc804b
2 files changed