Remove extra ';'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144604 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Frontend/SerializedDiagnosticPrinter.cpp

@@ -52,7 +52,7 @@ public:
       inNonNoteDiagnostic(false)
   { 
     EmitPreamble();
-  };
+  }
   
   ~SDiagsWriter() {}