Thread safety: small edit to unused variation on warning left in by accident from earlier commit

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139331 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/AnalysisBasedWarnings.cpp b/lib/Sema/AnalysisBasedWarnings.cpp
index afbfabf..20d83fe 100644
--- a/lib/Sema/AnalysisBasedWarnings.cpp
+++ b/lib/Sema/AnalysisBasedWarnings.cpp
@@ -1274,8 +1274,7 @@
       const MutexID &Mutex = I.getKey();
       // We report this error at the location of the first statement in a loop
       PartialDiagnostic Warning =
-        S.PDiag(diag::warn_expecting_lock_held_on_loop)
-          << Mutex.getName() << LK_Shared;
+        S.PDiag(diag::warn_expecting_lock_held_on_loop) << Mutex.getName();
       Warnings.push_back(DelayedDiag(FirstLocInLoop, Warning));
     }
   }