ART: Completely remove the --compile-pic option.

And the PIC-related fields from image header.

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Test: Pixel 2 XL boots.
Test: testrunner.py --target --optimizing
Bug: 77856493
Change-Id: I3787369378f12d8cd9003bebeae62830a67def33
23 files changed