[FIRRTL] Remove MemToRegOfVec shadowed parameters

Remove shadowed pass parameters for MemToRegOfVec.  These are now provided
by the base class and don't need to exist.  This also fixes an observed
nightly valgrind failure where these were used uninitialized.

Signed-off-by: Schuyler Eldridge <[email protected]>

Author: seldridge

lib/Dialect/FIRRTL/Transforms/MemToRegOfVec.cpp

@@ -430,9 +430,5 @@ struct MemToRegOfVecPass
       for (auto r : debugPorts)
         r.replaceAllUsesWith(builder.create<RefSendOp>(regOfVec.getResult()));
   }
-
-private:
-  bool replSeqMem;
-  bool ignoreReadEnable;
 };
 } // end anonymous namespace