Remove extra if statement

Author: yaira2

src/Files.App/Views/Layouts/ColumnLayoutPage.xaml.cs

@@ -426,9 +426,6 @@ ParentShellPageInstance is null ||
 			}
 			else if (e.Key == VirtualKey.Left) // Left arrow: select parent folder (previous column)
 			{
-				if (ParentShellPageInstance is not null)
-					return;
-
 				var currentBladeIndex = (ParentShellPageInstance is ColumnShellPage associatedColumnShellPage) ? associatedColumnShellPage.ColumnParams.Column : 0;
 				this.FindAscendant<ColumnsLayoutPage>()?.MoveFocusToPreviousBlade(currentBladeIndex);
 				FileList.SelectedItem = null;
@@ -437,9 +434,6 @@ ParentShellPageInstance is null ||
 			}
 			else if (e.Key == VirtualKey.Right) // Right arrow: switch focus to next column
 			{
-				if (ParentShellPageInstance is not null)
-					return;
-
 				var currentBladeIndex = (ParentShellPageInstance is ColumnShellPage associatedColumnShellPage) ? associatedColumnShellPage.ColumnParams.Column : 0;
 				this.FindAscendant<ColumnsLayoutPage>()?.MoveFocusToNextBlade(currentBladeIndex + 1);
 				e.Handled = true;