CommentSema.cpp: remove extra semicolon


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@160901 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/CommentSema.cpp b/lib/AST/CommentSema.cpp
index f079076..bb0d03e 100644
--- a/lib/AST/CommentSema.cpp
+++ b/lib/AST/CommentSema.cpp
@@ -451,7 +451,7 @@
   if (BestEditDistance <= MaxEditDistance)
     return BestPVDIndex;
   else
-    return ParamCommandComment::InvalidParamIndex;;
+    return ParamCommandComment::InvalidParamIndex;
 }
 
 // TODO: tablegen