Add method to remove a key

qt/applications/workbench/workbench/config/test/test_user.py

@@ -68,6 +68,12 @@ class ConfigUserTest(TestCase):
         self.assertFalse(self.cfg.has('main', 'missing-key'))
         self.assertFalse(self.cfg.has('main/missing-key'))
 
+    def test_remove_key(self):
+        self.cfg.set('main', 'key1', 1)
+        self.assertTrue(self.cfg.has('main/key1'))
+        self.cfg.remove('main/key1')
+        self.assertFalse(self.cfg.has('main/key1'))
+
     # ----------------------------------------------
     # Failure tests
     # ----------------------------------------------

qt/applications/workbench/workbench/config/user.py

@@ -114,6 +114,13 @@ class UserConfig(object):
             value = extra
         self.qsettings.setValue(option, value)
 
+    def remove(self, option, second=None):
+        """Removes a key from the settings. Key not existing returns without effect.
+        """
+        option = self._check_section_option_is_valid(option, second)
+        if self.has(option):
+            self.qsettings.remove(option)
+
     # -------------------------------------------------------------------------
     # "Private" methods
     # -------------------------------------------------------------------------