Revert "Do not load xml metadata for unchanged packages in RegisteredServicesCache"

This reverts commit 8094880025d0680ec4cf586929d85b9050d4e9d6.

Reason for revert: changed services order
Test: manual
Bug: 136261465

Change-Id: I2f78f0dbbace212309b87f779efad020cf255196
2 files changed