Remove unused variable.

llvm-svn: 158353

Author: isanbard

clang/lib/CodeGen/CGDebugInfo.cpp

@@ -1565,7 +1565,6 @@ llvm::DIType CGDebugInfo::CreateType(const AtomicType *Ty,
 
 /// CreateEnumType - get enumeration type.
 llvm::DIType CGDebugInfo::CreateEnumType(const EnumDecl *ED) {
-  llvm::DIFile Unit = getOrCreateFile(ED->getLocation());
   SmallVector<llvm::Value *, 16> Enumerators;
 
   // Create DIEnumerator elements for each enumerator.