Update for llvm API change.

llvm-svn: 250375
diff --git a/llvm/examples/Kaleidoscope/Chapter8/toy.cpp b/llvm/examples/Kaleidoscope/Chapter8/toy.cpp
index d58dadf..7eaf16c 100644
--- a/llvm/examples/Kaleidoscope/Chapter8/toy.cpp
+++ b/llvm/examples/Kaleidoscope/Chapter8/toy.cpp
@@ -848,8 +848,7 @@
   for (unsigned i = 0, e = NumArgs; i != e; ++i)
     EltTys.push_back(DblTy);
 
-  return DBuilder->createSubroutineType(Unit,
-                                        DBuilder->getOrCreateTypeArray(EltTys));
+  return DBuilder->createSubroutineType(DBuilder->getOrCreateTypeArray(EltTys));
 }
 
 //===----------------------------------------------------------------------===//