UI Feature Flag: 3PIDs

src/components/views/settings/tabs/user/GeneralUserSettingsTab.js

@@ -248,7 +248,9 @@ export default class GeneralUserSettingsTab extends React.Component {
         // validate 3PID ownership even if we're just adding to the homeserver only.
         // For newer homeservers with separate 3PID add and bind methods (MSC2290),
         // there is no such concern, so we can always show the HS account 3PIDs.
-        if (this.state.haveIdServer || this.state.serverSupportsSeparateAddAndBind === true) {
+        if (SettingsStore.getValue(UIFeature.ThirdPartyID) &&
+            (this.state.haveIdServer || this.state.serverSupportsSeparateAddAndBind === true)
+        ) {
             const emails = this.state.loading3pids
                 ? <Spinner />
                 : <EmailAddresses

src/settings/Settings.ts

@@ -631,4 +631,8 @@ export const SETTINGS: {[setting: string]: ISetting} = {
         supportedLevels: LEVELS_UI_FEATURE,
         default: true,
     },
+    [UIFeature.ThirdPartyID]: {
+        supportedLevels: LEVELS_UI_FEATURE,
+        default: true,
+    },
 };

src/settings/UIFeature.ts

@@ -20,4 +20,5 @@ export enum UIFeature {
     Widgets = "UIFeature.widgets",
     Voip = "UIFeature.voip",
     Feedback = "UIFeature.feedback",
+    ThirdPartyID = "UIFeature.thirdPartyId",
 }