[scroll-animations-1] time-based delays do not apply to scroll animations

See w3c#7575
w3c@43b12e4#r103992779
More background https://lists.w3.org/Archives/Public/www-style/2022Dec/0007.html

Author: fantasai

scroll-animations-1/Overview.bs

@@ -685,17 +685,21 @@ spec: cssom-view-1; type: dfn;
 	can also be further restricted to a particular timeline range
 	(see [[#named-range-animation-declaration]]).
 
+	Time-based delays ('animation-delay')
+	do not apply to [=scroll-driven animations=],
+	which are distance-based.
+
 ## Finite Timeline Calculations ## {#finite-attachment}
 
 	Unlike time-driven timelines,
 	[=scroll-driven timelines=] are finite,
 	thus [=scroll-driven animations=] are always attached
 	to a finite timeline range.
-	The animation’s delays ('animation-delay')
-	and iterations ('animation-iteration-count')
+	The animation’s <!-- delays ('animation-delay')
+	and --> iterations ('animation-iteration-count')
 	are set within the limits of this finite range.
 	If the specified duration is ''animation-duration/auto'',
-	then once any delays are subtracted,
+	then <!-- once any delays are subtracted, -->
 	the remaining range is divided by its [=iteration count=] ('animation-iteration-count')
 	to find the [=used value|used=] duration.