Remove redundant MSC implementation for io.element.rendezvous (#28583)

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

test/unit-tests/components/views/settings/devices/LoginWithQRSection-test.tsx

@@ -56,7 +56,6 @@ describe("<LoginWithQRSection />", () => {
             const defaultProps = {
                 onShowQr: () => {},
                 versions: makeVersions({ "org.matrix.msc4108": true }),
-                wellKnown: {},
             };
 
             const getComponent = (props = {}) => <LoginWithQRSection {...defaultProps} {...props} />;