chore(*): Simplifies statements

Author: 3phase

projects/igniteui-angular/src/lib/grids/grid-base.directive.ts

@@ -2998,8 +2998,7 @@ export class IgxGridBaseDirective extends DisplayDensityBase implements
      * @internal
      */
     public setFilteredSortedData(data, pinned: boolean) {
-        if (data === undefined) { data = []; }
-        data = data.map(rec => rec.ghostRecord !== undefined ? rec.recordRef : rec);
+        data = data ? data.map(rec => rec.ghostRecord !== undefined ? rec.recordRef : rec) : [];
         if (this._pinnedRecordIDs.length > 0 && pinned) {
             this._filteredSortedPinnedData = data;
             this.pinnedRecords = data;
@@ -5196,8 +5195,7 @@ export class IgxGridBaseDirective extends DisplayDensityBase implements
      * ```
      */
     get unpinnedDataView(): any[] {
-        return this.unpinnedRecords ? this.unpinnedRecords :
-                this.verticalScrollContainer.igxForOf ? this.verticalScrollContainer.igxForOf : [];
+        return this.unpinnedRecords ? this.unpinnedRecords : this.verticalScrollContainer.igxForOf || [];
     }
 
     /**