Bug 577897 morkTable::GetPort doesn't need ev

r=bienvenu

--HG--
extra : rebase_source : 5c55e4359e877f742b5c4a46953a6b1e917268c1

db/mork/src/morkTable.cpp

@@ -231,7 +231,7 @@ NS_IMETHODIMP
 morkTable::GetPort(nsIMdbEnv* mev,
   nsIMdbPort** acqPort) // collection container
 {
-  morkEnv* ev = morkEnv::FromMdbEnv(mev);
+  (void) morkEnv::FromMdbEnv(mev);
   NS_ENSURE_ARG_POINTER(acqPort);    
   *acqPort = mTable_Store;
   return NS_OK;