[css-animations-2] Remove issue now that we've resolved on it. #13010

Author: tabatkins

css-animations-2/Overview.bs

@@ -1076,15 +1076,12 @@ at once.
 A value of <dfn value for=timeline-trigger>none</dfn>
 is equivalent to ''none none normal''.
 
-Note: Due to significant potentially ambiguities in the syntax
+Note: Due to significant potential ambiguities in the syntax
 ('timeline-trigger-name' vs [=timeline=] names in 'timeline-trigger-source';
 [=enter ranges=] vs [=exit ranges=]),
 this shorthand's values must be given in the specified order,
 rather than being settable in any order as is more common.
 
-Issue: I think we need the ''/'' to disambiguate the two ranges?
-
-
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