Further optimize excluding results in not queries

Usually the number of the parameters that have to be excluded in the not query is much lower than the number of values in the index, so it makes sense to actually try to pop them out from the list

src/Products/PluginIndexes/unindex.py

@@ -504,7 +504,12 @@ def query_index(self, record, resultset=None):
                 i_not_parm = self._apply_not(not_parm, resultset)
                 if i_not_parm:
                     return difference(resultset, i_not_parm)
-            record.keys = [k for k in index.keys() if k not in not_parm]
+            record.keys = list(index)
+            for parm in not_parm:
+                try:
+                    record.keys.remove(parm)
+                except ValueError:
+                    pass
         else:
             # convert query arguments into indexed format
             record.keys = list(map(self._convert, record.keys))