Don't force realm name when using secret key

Using other realms can be useful, for example, to manage realm users with restricted rights.

keycloak/keycloak_admin.py

@@ -1873,7 +1873,7 @@ class KeycloakAdmin:
         return r
 
     def get_token(self):
-        token_realm_name = 'master' if self.client_secret_key else self.user_realm_name or self.realm_name
+        token_realm_name = self.user_realm_name or self.realm_name
         self.keycloak_openid = KeycloakOpenID(server_url=self.server_url, client_id=self.client_id,
                                               realm_name=token_realm_name, verify=self.verify,
                                               client_secret_key=self.client_secret_key,
@@ -1938,4 +1938,4 @@ class KeycloakAdmin:
         params_path = {"realm-name": self.realm_name, "id": str(user_id) }
         data_raw = self.connection.raw_delete(URL_ADMIN_DELETE_USER_ROLE.format(**params_path),
                                               data=json.dumps(payload))
-        return raise_error_from_response(data_raw, KeycloakGetError, expected_codes=[204])
+        return raise_error_from_response(data_raw, KeycloakGetError, expected_codes=[204])