Revert^2 "Add jvm mode to run-libcore-tests.sh"

This reverts commit 58a7d6c890e5e8b9de55c49a5b23cc518ddaeebe.

Test: art/tools/run-libcore-tests.sh --mode=jvm -- libcore.java.lang.invoke
Test: Compare output using --dry-run with arguments from buildbots.
Change-Id: Ic051d4c4467c59f5bdc79a6af9923993e7dbaf49
1 file changed