record_android_trace: remove file from device after pull
record_android_trace: remove file from device after pull

Avoid polluting the /data/misc/perfetto-traces/ dir when
recording traces. Remove the trace from the device after
the adb pull.

Test: manual: record a trace and check perfetto-traces/ is empty
Bug: 191724329
Change-Id: If1f10b07d1085df8805a043bdebea650939d7514
google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto