[processing] Fix DeleteColumn output hint

the dropped fields are discarded, the modeller get the rest, as expected

Author: lynxlynxlynx

python/plugins/processing/algs/qgis/DeleteColumn.py

@@ -66,7 +66,7 @@ def displayName(self):
         return self.tr('Drop field(s)')
 
     def outputName(self):
-        return self.tr('Fields dropped')
+        return self.tr('Remaining fields')
 
     def prepareAlgorithm(self, parameters, context, feedback):
         self.fields_to_delete = self.parameterAsFields(parameters, self.COLUMNS, context)