Remove JIT native debug info on failed commits.

This could happen if single-implementation assumptions are invalid,
and would result in temporary double entries in JIT debug info.

Test: ./art/test.py -b -r --host --gcstress --jit --32 -t 068
Change-Id: I765c9310b6cc4fa440e4121780f8b9053388bd3d
1 file changed