MediaPlayer2: remove libandroid_runtime + other static lib dependency.

MediaMetricsJNI.cpp is forked from libandroid_runtime instead of moving
since it was also used with in the libandroid_runtime.so.

Test: MediaPlayer2Test
Bug: 112767225
Change-Id: Iebb0ce2736dbf4df9288a5c3aca447a52c4de533
3 files changed