Remove old metrics dashboard

It only applies to a single instance, making it fairly useless

static/js/directives/ui/ps-usage-graph.js

@@ -1,50 +0,0 @@
-/**
- * An element which displays charts and graphs representing the current installation of the
- * application. This control requires superuser access and *must be disabled when not visible*.
- */
-angular.module('quay').directive('psUsageGraph', function () {
-  var directiveDefinitionObject = {
-    priority: 0,
-    templateUrl: '/static/directives/ps-usage-graph.html',
-    replace: false,
-    transclude: false,
-    restrict: 'C',
-    scope: {
-      'isEnabled': '=isEnabled'
-    },
-    controller: function($scope, $element) {
-      $scope.counter = -1;
-      $scope.data = null;
-
-      var source = null;
-
-      var connect = function() {
-        if (source) { return; }
-        source = new EventSource('/realtime/ps');
-        source.onmessage = function(e) {
-          $scope.$apply(function() {
-            $scope.counter++;
-            $scope.data = JSON.parse(e.data);
-          });
-        };
-      };
-
-      var disconnect = function() {
-        if (!source) { return; }
-        source.close();
-        source = null;
-      };
-
-      $scope.$watch('isEnabled', function(value) {
-        if (value) {
-          connect();
-        } else {
-          disconnect();
-        }
-      });
-
-      $scope.$on("$destroy", disconnect);
-    }
-  };
-  return directiveDefinitionObject;
-});

static/js/pages/superuser.js

@@ -29,15 +29,10 @@
     $scope.pollChannel = null;
     $scope.logsScrolled = false;
     $scope.csrf_token = encodeURIComponent(window.__token);
-    $scope.dashboardActive = false;
     $scope.currentConfig = null;
     $scope.serviceKeysActive = false;
     $scope.takeOwnershipInfo = null;
 
-    $scope.setDashboardActive = function(active) {
-      $scope.dashboardActive = active;
-    };
-
     $scope.configurationSaved = function(config) {
       $scope.currentConfig = config;
       $scope.requiresRestart = true;