simpleperf: add --exclude-perf in inject cmd.

It removes tracing data for the recording process.
Also use --exclude-perf in profcollect.cpp.

Bug: 172284638
Test: run simpleperf_unit_test.
Test: run simpleperf inject manually.
Change-Id: I9cb6589dc95fe4523bce45838aac6b589dd2bf21
6 files changed