removing legend from Discover page, also removing functional tests for the legend on discover

src/plugins/kibana/public/discover/directives/timechart.js

@@ -17,7 +17,7 @@ uiModules
       const init = function () {
         // This elem should already have a height/width
         const myChart = new vislib.Chart(elem[0], {
-
+          addLegend: false
         });
 
         $scope.$watch('data', function (data) {

src/ui/public/visualize/visualize.html

@@ -11,7 +11,7 @@
     ng-style="loadingStyle"
     ng-class="{ loading: vis.type.requiresSearch && searchSource.activeFetchCount > 0 }"
     class="visualize-chart"></div>
-  <visualize-legend></visualize-legend>
+  <visualize-legend ng-show="vis.params.addLegend"></visualize-legend>
 </div>
 <!-- <pre>{{chartData | json}}</pre> -->
 <visualize-spy ng-if="vis.type.requiresSearch && showSpyPanel"></visualize-spy>

test/support/pages/discover_page.js

@@ -213,24 +213,6 @@ define(function (require) {
       .getProperty('value');
     },
 
-    clickLegendExpand: function clickLegendExpand() {
-      return thisTime
-      .findByCssSelector('.fa-chevron-circle-left')
-      .click();
-    },
-
-    clickLegendCollapse: function clickLegendCollapse() {
-      return thisTime
-      .findByCssSelector('div.legend-toggle > i.fa-chevron-circle-right')
-      .click();
-    },
-
-    getLegendWidth: function getLegendWidth() {
-      return thisTime
-      .findByCssSelector('.legend-col-wrapper')
-      .getProperty('clientWidth');
-    },
-
     clickSidebarExpand: function clickSidebarExpand() {
       return thisTime
       .findByCssSelector('.chevron-cont')