Remove meaningless qualifiers from return types, avoiding compiler warnings.

llvm-svn: 44240
diff --git a/llvm/lib/VMCore/BasicBlock.cpp b/llvm/lib/VMCore/BasicBlock.cpp
index 92734bb..d45a1c4 100644
--- a/llvm/lib/VMCore/BasicBlock.cpp
+++ b/llvm/lib/VMCore/BasicBlock.cpp
@@ -134,7 +134,7 @@
   return dyn_cast<TerminatorInst>(&InstList.back());
 }
 
-const TerminatorInst *const BasicBlock::getTerminator() const {
+const TerminatorInst *BasicBlock::getTerminator() const {
   if (InstList.empty()) return 0;
   return dyn_cast<TerminatorInst>(&InstList.back());
 }