Remove xdai link on sidebar (#2372)

* better code in schemeName function

* remove switch to xdai button on sidebar

Author: roienatan

src/layouts/SidebarMenu.tsx

@@ -239,12 +239,6 @@ class SidebarMenu extends React.Component<IProps, IStateProps> {
                   <li><a className="externalLink"
                     href={(network === "main") ? process.env.ALCHEMY_V2_URL_MAINNET : process.env.ALCHEMY_V2_URL_XDAI}
                     target="_blank" rel="noopener noreferrer">Switch to v2</a></li>
-                  {(network === "main") ?
-                    <li><a className="externalLink" href={process.env.ALCHEMY_V1_URL_XDAI} target="_blank" rel="noopener noreferrer">Switch to xDAI</a></li>
-                    : (network === "xdai") ?
-                      <li><a className="externalLink" href={process.env.ALCHEMY_V1_URL_MAINNET} target="_blank" rel="noopener noreferrer">Switch to Mainnet</a></li>
-                      : ""
-                  }
                 </>
               }
               <li className={css.daoStack}>