Revert "ART: Fix JDWP GetClassLoader command"

This reverts commit 40144cc022d321e2ec28d7fac2f5a24ba6714aff.

The implementation should not DCHECK.

Bug: 26349019
Change-Id: I9238ee0b05f8a150f55773e78301ded9e8b38334
1 file changed