chore(col-pinning-tests): remove duplicated test

Author: ddaribo

projects/igniteui-angular/src/lib/grids/grid/column-pinning.spec.ts

@@ -111,27 +111,6 @@ describe('Column Pinning UI #grid', () => {
             verifyColumnIsPinned(column, false, 0);
         });
 
-        it('Checks order of columns after unpinning', () => {
-            for (const column of grid.columnList) {
-                column.pin();
-            }
-            fix.detectChanges();
-            grid.getColumnByName('ID').unpin();
-            grid.getColumnByName('ReleaseDate').unpin();
-            grid.getColumnByName('Downloads').unpin();
-            grid.getColumnByName('ProductName').unpin();
-            grid.getColumnByName('Released').unpin();
-            fix.detectChanges();
-            grid.unpinnedColumns.forEach((column, index) => {
-                if (index === grid.unpinnedColumns.length - 1) {
-                    return;
-                }
-                expect(
-                    column.index < grid.unpinnedColumns[index + 1].index
-                ).toBe(true);
-            });
-        });
-
         it('reflects properly grid column pinned value changes.', () => {
             const name = 'ReleaseDate';
             verifyCheckbox(name, false, false, columnChooserElement);