### Godot version

Godot 4.0 statble

### System information

Windows 10

### Issue description

TextEdit boundary wrapmode not works, it only removes the horizontal scrollbar

### Steps to reproduce

Add a textedit in editor, set  the wrap mode to boundary, type something.

### Minimal reproduction project

![image](https://user-images.githubusercontent.com/9168814/224538077-2efb4e67-8976-496e-9223-c460365ecc28.png)
![image](https://user-images.githubusercontent.com/9168814/224538084-af773b86-d73a-4e8b-9b66-a0fb4bde1168.png)

if (!editable) {
		return;
	}
	start_action(EditAction::ACTION_BACKSPACE);
	Vector<int> carets_to_remove;
	Vector<int> caret_edit_order = get_caret_index_edit_order();
	for (int i = 0; i < caret_edit_order.size(); i++) {
		int caret_idx = caret_edit_order[i];
		if (get_caret_column(caret_idx) == 0 && get_caret_line(caret_idx) == 0 && !has_selection(caret_idx)) {
			continue;
		}
		if (has_selection(caret_idx) || (!p_all_to_left && !p_word) || get_caret_column(caret_idx) == 0) {
			backspace(caret_idx);
			continue;
		}
		if (p_all_to_left) {
			int caret_current_column = get_caret_column(caret_idx);
			set_caret_column(0, caret_idx == 0, caret_idx);
			_remove_text(get_caret_line(caret_idx), 0, get_caret_line(caret_idx), caret_current_column);
			adjust_carets_after_edit(caret_idx, get_caret_line(caret_idx), caret_current_column, get_caret_line(caret_idx), get_caret_column(caret_idx));
			
			for (int j = i + 1; j < caret_edit_order.size(); j++) {
				
				if (has_selection(caret_edit_order[j]) && get_selection_from_line(caret_edit_order[j]) != get_caret_line(caret_idx) && get_selection_to_line(caret_edit_order[j]) == get_caret_line(caret_idx)) {
					carets.write[caret_edit_order[j]].selection.to_column = 0;