OpcodeDispatcher: rm CalculateFlags_ShiftVariable

unused

Signed-off-by: Alyssa Rosenzweig <[email protected]>

FEXCore/Source/Interface/Core/OpcodeDispatcher.h

@@ -1756,13 +1756,6 @@ friend class FEXCore::IR::PassManager;
     PossiblySetNZCVBits |= OldSetNZCVBits;
   }
 
-  template <typename F>
-  void CalculateFlags_ShiftVariable(OrderedNode *Shift, F&& CalculateFlags) {
-    // We are the ones calculating the deferred flags. Don't recurse!
-    InvalidateDeferredFlags();
-    Calculate_ShiftVariable(Shift, CalculateFlags);
-  }
-
   /**
    * @name These functions are used by the deferred flag handling while it is calculating and storing flags in to RFLAGs.
    * @{ */