Remove CSS Regions perf tests
https://bugs.webkit.org/show_bug.cgi?id=228016
Reviewed by Ryosuke Niwa.
The feature has been removed long time ago, so let's do the same with the associated perf tests.
* Layout/RegionsAuto.html: Removed.
* Layout/RegionsAutoMaxHeight.html: Removed.
* Layout/RegionsExtendingSelectionMixedContent.html: Removed.
* Layout/RegionsFixed.html: Removed.
* Layout/RegionsFixedShort.html: Removed.
* Layout/RegionsSelectAllMixedContent.html: Removed.
* Layout/RegionsSelection.html: Removed.
* Layout/RegionsShapes.html: Removed.
* Layout/Shapes/RegionsShapesNoShapes.html: Removed.
* Layout/Shapes/resources/RegionsShapesContent.html: Removed.
* Layout/Shapes/resources/RegionsShapesContentNoShapes.html: Removed.
* Layout/resources/regions.css: Removed.
* Layout/resources/regions.js: Removed.
Canonical link: https://commits.webkit.org/239724@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@279981 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2873a3804f