chore(*): Removed irrelevant comment.

Author: gedinakova

projects/igniteui-angular/grids/core/src/services/csv/char-separated-value-data.ts

@@ -52,9 +52,6 @@ export class CharSeparatedValueData {
         this._escapeCharacters.push(this._delimiter);
 
         const headers = columns && columns.length ?
-                        /* When column groups are present, always use the field as it indicates the group the column belongs to.
-                        * Otherwise, in PivotGrid scenarios we can end up with many duplicated column names without a hint what they represent.
-                        */
                         columns.map(c => c.header ?? c.field) :
                         keys;