diff --git a/src/components/structures/MatrixChat.js b/src/components/structures/MatrixChat.js
index 909d0b2d42..db5e898946 100644
--- a/src/components/structures/MatrixChat.js
+++ b/src/components/structures/MatrixChat.js
@@ -1422,42 +1422,6 @@ export default React.createClass({
         }
     },
 
-    _handleSyncError(e) {
-        if (e instanceof Matrix.InvalidStoreError) {
-            if (e.reason === Matrix.InvalidStoreError.TOGGLED_LAZY_LOADING) {
-                return Promise.resolve().then(() => {
-                    const lazyLoadEnabled = e.value;
-                    if (lazyLoadEnabled) {
-                        const LazyLoadingResyncDialog =
-                            sdk.getComponent("views.dialogs.LazyLoadingResyncDialog");
-                        return new Promise((resolve) => {
-                            Modal.createDialog(LazyLoadingResyncDialog, {
-                                onFinished: resolve,
-                            });
-                        });
-                    } else {
-                        // show warning about simultaneous use
-                        // between LL/non-LL version on same host.
-                        // as disabling LL when previously enabled
-                        // is a strong indicator of this (/develop & /app)
-                        const LazyLoadingDisabledDialog =
-                            sdk.getComponent("views.dialogs.LazyLoadingDisabledDialog");
-                        return new Promise((resolve) => {
-                            Modal.createDialog(LazyLoadingDisabledDialog, {
-                                onFinished: resolve,
-                                host: window.location.host,
-                            });
-                        });
-                    }
-                }).then(() => {
-                    return MatrixClientPeg.get().store.deleteAllData();
-                }).then(() => {
-                    PlatformPeg.get().reload();
-                });
-            }
-        }
-    },
-
     showScreen: function(screen, params) {
         if (screen == 'register') {
             dis.dispatch({