Revert "Respect border settings when rendering lone tabbed/stacked child"

This reverts commit 65328ef60c.

sway/desktop/render.c

@@ -781,13 +781,6 @@ static void render_containers_stacked(struct sway_output *output,
 
 static void render_containers(struct sway_output *output,
 		pixman_region32_t *damage, struct parent_data *parent) {
-	if (parent->children->length == 1) {
-		struct sway_container *child = parent->children->items[0];
-		if (child->view) {
-			render_containers_linear(output, damage, parent);
-			return;
-		}
-	}
 	switch (parent->layout) {
 	case L_NONE:
 	case L_HORIZ:

sway/tree/view.c

@@ -242,23 +242,23 @@ void view_autoconfigure(struct sway_view *view) {
 		view->border_bottom = bottom_y != ws->y + ws->height;
 	}
 
+	double x, y, width, height;
+	x = y = width = height = 0;
+	double y_offset = 0;
+
 	// In a tabbed or stacked container, the container's y is the top of the
 	// title area. We have to offset the surface y by the height of the title,
 	// bar, and disable any top border because we'll always have the title bar.
-	double y_offset = 0;
 	enum sway_container_layout layout = container_parent_layout(con);
-	list_t *siblings = container_get_siblings(con);
-	if (siblings->length > 1 && !container_is_floating(con)) {
-		if (layout == L_TABBED) {
+	if (layout == L_TABBED && !container_is_floating(con)) {
 		y_offset = container_titlebar_height();
 		view->border_top = false;
-		} else if (layout == L_STACKED) {
+	} else if (layout == L_STACKED && !container_is_floating(con)) {
+		list_t *siblings = container_get_siblings(con);
 		y_offset = container_titlebar_height() * siblings->length;
 		view->border_top = false;
 	}
-	}
 
-	double x, y, width, height = 0;
 	switch (view->border) {
 	case B_CSD:
 	case B_NONE: