[css-fonts-4] Trim left-over wording, fix #9281

Author: svgeesus

css-fonts-4/Overview.bs

@@ -6921,8 +6921,7 @@ For others, there is a need to control the colors used from a stylesheet.
 CSS provides two ways to do this.
 The 'font-palette' property allows selecting
 one of several different palettes
-contained in the font,
-or alternatively, forcing colored glyphs not to be used.
+contained in the font.
 The ''@font-palette-values'' rule allows overriding
 one or more colors from within a palette
 or even