Remove unused identityEnabled property from ValidatedServerConfig

See https://github.com/vector-im/riot-web/issues/10229

src/components/views/auth/ServerTypeSelector.js

@@ -39,7 +39,6 @@ export const TYPES = {
             hsName: "matrix.org",
             hsNameIsDifferent: false,
             isUrl: "https://vector.im",
-            identityEnabled: true,
         }),
     },
     PREMIUM: {

src/utils/AutoDiscoveryUtils.js

@@ -31,7 +31,6 @@ export class ValidatedServerConfig {
     hsNameIsDifferent: string;
 
     isUrl: string;
-    identityEnabled: boolean;
 
     isDefault: boolean;
 }
@@ -236,7 +235,6 @@ export default class AutoDiscoveryUtils {
             hsName: preferredHomeserverName,
             hsNameIsDifferent: url.hostname !== preferredHomeserverName,
             isUrl: preferredIdentityUrl,
-            identityEnabled: !SdkConfig.get()['disable_identity_server'],
             isDefault: false,
         });
     }

test/test-utils.js

@@ -268,7 +268,6 @@ export function mkServerConfig(hsUrl, isUrl) {
         hsName: "TEST_ENVIRONMENT",
         hsNameIsDifferent: false, // yes, we lie
         isUrl,
-        identityEnabled: true,
     });
 }