[ iOS ] editing/selection/doubleclick-whitespace-live-range.html is a constant text failure

https://bugs.webkit.org/show_bug.cgi?id=248919

Unreviewed. Skipping the test like editing/selection/doubleclick-whitespace.html

* LayoutTests/platform/ios/TestExpectations:

Canonical link: https://commits.webkit.org/257530@main

Author: rniwa

LayoutTests/platform/ios/TestExpectations

@@ -3791,5 +3791,3 @@ webkit.org/b/247831 fast/images/animated-avif.html [ Timeout ]
 
 # Screen Orientation API doesn't support nested frames yet
 imported/w3c/web-platform-tests/screen-orientation/onchange-event-subframe.html [ Skip ]
-
-webkit.org/b/248919 editing/selection/doubleclick-whitespace-live-range.html [ Failure ]