Delete unused instantiations of DIBuilder. NFC
Delete unused instantiations of DIBuilder. NFC

git-svn-id: 0ff597fd157e6f4fc38580e8d64ab130330d2411@316494 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit 58a8315339f848f5e1180a973d56b1808db6ceb3)

apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm,apple/swift-llvm