[PGO] Cleanup: remove reduncant calls in lowering

CoverageMapping data's section and alignment is
already set during creation. No need to call it again
during lowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@256716 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed