Revert "Track event when someone previews basic view"

This reverts commit 77d96032bf.

app/assets/javascripts/errorTracking.js

@@ -0,0 +1,22 @@
+(function(Modules) {
+  "use strict";
+
+  Modules.TrackError = function() {
+
+    this.start = function(component) {
+
+      if (!ga) return;
+
+      ga(
+        'send',
+        'event',
+        'Error',
+        $(component).data('error-type'),
+        $(component).data('error-label')
+      );
+
+    };
+
+  };
+
+})(window.GOVUK.Modules);