fix(e2ee): hide if not supported.

react/features/security/components/security-dialog/SecurityDialog.js

      */
     _passwordNumberOfDigits: ?number,
 
+    /**
+     * Indicates whether e2ee will be displayed or not.
+     */
+    _showE2ee: boolean,
+
     /**
      * Action that sets the conference password.
      */
     _locked,
     _password,
     _passwordNumberOfDigits,
+    _showE2ee,
     setPassword
 }: Props) {
     const [ passwordEditEnabled, setPasswordEditEnabled ] = useState(false);
                     passwordNumberOfDigits = { _passwordNumberOfDigits }
                     setPassword = { setPassword }
                     setPasswordEditEnabled = { setPasswordEditEnabled } />
-                <div className = 'separator-line' />
-                <E2EESection />
+                {
+                    _showE2ee ? <>
+                        <div className = 'separator-line' />
+                        <E2EESection />
+                    </> : null
+                }
+
             </div>
         </Dialog>
     );
 function mapStateToProps(state) {
     const {
         conference,
+        e2eeSupported,
         locked,
         password
     } = state['features/base/conference'];
         _conference: conference,
         _dialIn: state['features/invite'],
         _locked: locked,
-        _password: password
+        _password: password,
+        _showE2ee: Boolean(e2eeSupported)
     };
 }