DSC-2194 Removed unused observable provided removed html tag

Author: Mattia Vianelli

src/app/search-page/search-page.component.html

@@ -1 +1 @@
-<ds-search [showCharts]="true" [collapseCharts]="true" [showChartsToggle]="true" [showCsvExport]="false" [showExport]="true" [trackStatistics]="true"></ds-search>
+<ds-themed-search [showCharts]="true" [collapseCharts]="true" [showChartsToggle]="true" [showCsvExport]="false" [showExport]="true" [trackStatistics]="true"></ds-themed-search>

src/app/shared/search/search-charts/search-charts.component.ts

@@ -69,11 +69,6 @@ export class SearchChartsComponent implements OnInit {
    */
   isPlatformBrowser: boolean;
 
-  /**
-   * Array with charts visibility
-   */
-  chartsVisibilityList$: Observable<boolean[]> = of([true]);
-
   /**
    * Prop that provides the boolean value for an existing valid chart (true if at least one valid chart is found)
    */