[llvm-config] Get rid of code related to the Makefile builds

Summary: I left --build-system for backwards compat, in case there are scripts using it. Feel free to ask for its removal too.

Reviewers: chapuni, tstellarAMD

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D17886

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@262924 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed