log2: Use unary_decl instead of custom inc file

Signed-off-by: Jan Vesely <jan.vesely@rutgers.edu>
Reviewed-By: Aaron Watry <awatry@gmail.com>
llvm-svn: 317248
GitOrigin-RevId: 7fc23fbdcb4c5f161d62a735ce01eacf594fda31
2 files changed