Run-test: Remove intermediate files from the build output.

This removes 90%+ of files in the data for run-tests,
which is needed to build but not to execute the tests.
(original source code and java-bytecode class files)

Trade-fed has its own implementation of 'adb push',
which is very slow, so the extra files considerably
slowed everything down.

Test: ./art/test.py -r --jvm --host --target --optimizing --64
Change-Id: Ie4da1b9c9e94f0d265fdb384948a073593983ac5
5 files changed