Cleanup sepolicy related to APEX pre/post-install hooks

The pre/post-install hook functionality has been deprecated and removed.

Bug: 172606645
Test: atest ApexTestCases
Test: atest CtsStagedInstallHostTestCases
Change-Id: I8a5f726a0c8f005654d0430b5a4598e416ff9c28
2 files changed