Revert "ART: Temporarily use global references for GetLoadedClasses"

This reverts commit d2d0353de9e5c10f2a4a9ff2102d2b777c134a37.

The IndirectReferenceTable now allows resizing for local references.

Bug: 31684578
Bug: 32125344
Test: m test-art-host
Change-Id: I47dab19eb7ae66fc7d55d202a13a87f508c35e03
2 files changed