Remove Piwik support (#8835)

* Remove all mentions of Piwik

* Kill off all consumer of the old Piwik Analytics module

* Simplify ModalManager interface

* i18n

* Attempt to fix old e2e tests

* Remove unused component

* Iterate PR

src/components/views/messages/MLocationBody.tsx

@@ -57,9 +57,7 @@ export default class MLocationBody extends React.Component<IBodyProps, IState> {
     }
 
     private onClick = () => {
-        Modal.createTrackedDialog(
-            'Location View',
-            '',
+        Modal.createDialog(
             LocationViewDialog,
             {
                 matrixClient: this.context,