Guard ANGLE rules file check with DEBUG flag

Temporarily disable ANGLE rules file checking to avoid
LeakedClosableViolation which is triggering crashes.

This can be removed when refactor is completed that avoids
holding a file descriptor open until the driver loads.

Bug: 119516511
Test: cts-tradefed run singleCommand cts -m CtsAngleIntegrationHostTestCases
Change-Id: Icd8a48c853825ebfd64cf0746ae8203554e1684e