Revert "Make class loader context fail for unknown class loaders"

This reverts commit 2d3de3a40015af07f7645a298f77b398af0c6c2c.

Reason for revert: 8s regression in boot time b/149517940

Change-Id: I81365d1bd63c691d715b8f970dac9da64ab419ff
6 files changed