Move code size from OatQuickMethodHeader to CodeInfo.

This saves 0.5% of oat file size.
(0.8% saving from this CL minus 0.3% due to go/aog/1614482)

Bug: 123510633
Test: m dump-oat
Test: m test-art-host-gtest
Test: ./art/test.py -b -r --host
Change-Id: I035b54a47b300a5808aa8c2992f87eae009fd245
14 files changed