Revert "make Label consider spaces for visible_characters"

This reverts commit 695980a0f2.

Fixes #35668.

CHANGELOG.md

@@ -449,7 +449,6 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Decreased the `rotation_degrees` range in various nodes to -360..360 to be easier to adjust using the slider.
   - Lower and higher values can still be entered manually, which is useful for animation purposes.
 - The default RichTextLabel color is now `#ffffff`, matching the default Label color for better consistency.
-- Label's `visible_characters` property now takes spaces into account to be consistent with RichTextLabel.
 - SpinBoxes now calculate the entered value using the Expression class.
   - For example, writing `2 + 2` in a SpinBox then pressing Enter will result in `4`.
 - Saved resources no longer contain dependency indices and metadata such as node folding, resulting in more VCS-friendly files.

scene/gui/label.cpp

@@ -232,7 +232,6 @@ void Label::_notification(int p_what) {
 					return;
 				}
 				if (from->space_count) {
-					chars_total += from->space_count;
 					/* spacing */
 					x_ofs += space_w * from->space_count;
 					if (can_fill && align == ALIGN_FILL && spaces) {