Removes all mention of downloadcsv ff

app/assets/javascripts/monitoring/components/charts/time_series.vue

 <script>
 import { __ } from '~/locale';
-import { mapState } from 'vuex';
 import { GlLink, GlButton } from '@gitlab/ui';
 import { GlAreaChart, GlLineChart, GlChartSeriesLabel } from '@gitlab/ui/dist/charts';
 import dateFormat from 'dateformat';
@@ -70,7 +69,6 @@ export default {
     };
   },
   computed: {
-    ...mapState('monitoringDashboard', ['exportMetricsToCsvEnabled']),
     chartData() {
       // Transforms & supplements query data to render appropriate labels & styles
       // Input: [{ queryAttributes1 }, { queryAttributes2 }]
@@ -190,18 +188,6 @@ export default {
     yAxisLabel() {
       return `${this.graphData.y_label}`;
     },
-    csvText() {
-      const chartData = this.chartData[0].data;
-      const header = `timestamp,${this.graphData.y_label}\r\n`; // eslint-disable-line @gitlab/i18n/no-non-i18n-strings
-      return chartData.reduce((csv, data) => {
-        const row = data.join(',');
-        return `${csv}${row}\r\n`;
-      }, header);
-    },
-    downloadLink() {
-      const data = new Blob([this.csvText], { type: 'text/plain' });
-      return window.URL.createObjectURL(data);
-    },
   },
   watch: {
     containerWidth: 'onResize',
@@ -270,16 +256,6 @@ export default {
   <div class="prometheus-graph">
     <div class="prometheus-graph-header">
       <h5 class="prometheus-graph-title js-graph-title">{{ graphData.title }}</h5>
-      <gl-button
-        v-if="exportMetricsToCsvEnabled"
-        :href="downloadLink"
-        :title="__('Download CSV')"
-        :aria-label="__('Download CSV')"
-        style="margin-left: 200px;"
-        download="chart_metrics.csv"
-      >
-        {{ __('Download CSV') }}
-      </gl-button>
       <div class="prometheus-graph-widgets js-graph-widgets">
         <slot></slot>
       </div>

spec/javascripts/monitoring/charts/time_series_spec.js

@@ -23,7 +23,6 @@ describe('Time series component', () => {
     store = createStore();
     store.commit(`monitoringDashboard/${types.RECEIVE_METRICS_DATA_SUCCESS}`, MonitoringMock.data);
     store.commit(`monitoringDashboard/${types.RECEIVE_DEPLOYMENTS_DATA_SUCCESS}`, deploymentData);
-    store.dispatch('monitoringDashboard/setFeatureFlags', { exportMetricsToCsvEnabled: true });
     [mockGraphData] = store.state.monitoringDashboard.groups[0].metrics;
 
     makeTimeSeriesChart = (graphData, type) =>
@@ -61,19 +60,6 @@ describe('Time series component', () => {
       expect(timeSeriesChart.find('.js-graph-widgets').text()).toBe(mockWidgets);
     });
 
-    describe('when exportMetricsToCsvEnabled is disabled', () => {
-      beforeEach(() => {
-        store.dispatch('monitoringDashboard/setFeatureFlags', { exportMetricsToCsvEnabled: false });
-      });
-
-      it('does not render the Download CSV button', done => {
-        timeSeriesChart.vm.$nextTick(() => {
-          expect(timeSeriesChart.contains('glbutton-stub')).toBe(false);
-          done();
-        });
-      });
-    });
-
     describe('methods', () => {
       describe('formatTooltipText', () => {
         const mockDate = deploymentData[0].created_at;
@@ -234,24 +220,6 @@ describe('Time series component', () => {
           expect(timeSeriesChart.vm.yAxisLabel).toBe('CPU');
         });
       });
-
-      describe('csvText', () => {
-        it('converts data from json to csv', () => {
-          const header = `timestamp,${mockGraphData.y_label}`;
-          const data = mockGraphData.queries[0].result[0].values;
-          const firstRow = `${data[0][0]},${data[0][1]}`;
-
-          expect(timeSeriesChart.vm.csvText).toMatch(`^${header}\r\n${firstRow}`);
-        });
-      });
-
-      describe('downloadLink', () => {
-        it('produces a link to download metrics as csv', () => {
-          const link = timeSeriesChart.vm.downloadLink;
-
-          expect(link).toContain('blob:');
-        });
-      });
     });
 
     afterEach(() => {