Benchmark: Remove stl and sdk_version from Android.bp

Bug: 146816684
Test: adb shell am instrument -w -r -e debug false -e class\
      'com.android.media.benchmark.tests.ExtractorTest#sampleExtractNativeTest' \
      com.android.media.benchmark/androidx.test.runner.AndroidJUnitRunner
Test: encoderTest -P /data/local/tmp/MediaBenchmark/res/

Change-Id: I2fb719151426231770e66376a9a14a9f0c903c16
2 files changed