Bug 1925302 [wpt PR 48672] - [skia] Remove image filter legacy flags, a=testonly

Automatic update from web-platform-tests
[skia] Remove image filter legacy flags

Change-Id: Iefd07280198060ac7ed46d326ea0379f2ca6df3d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5920776
Reviewed-by: Xiyuan Xia <xiyuanchromium.org>
Reviewed-by: Xiaoqian Dai <xdaichromium.org>
Commit-Queue: Michael Ludwig <michaelludwiggoogle.com>
Cr-Commit-Position: refs/heads/main{#1370373}

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wpt-commits: 229ad07ca5f6658cd7ada7e7aac7a0558b8e0e9b
wpt-pr: 48672

UltraBlame original commit: f7859d4579ac8a6fa6b6e563fb776332aa284732

Author: marco-c

testing/web-platform/tests/css/filter-effects/backdrop-filter-plus-filter.html

@@ -4,6 +4,7 @@
 <link rel="author" href="mailto:[email protected]">
 <link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
 <link rel="match"  href="backdrop-filter-plus-filter-ref.html">
+<meta name=fuzzy content="maxDifference=0-1; totalPixels=0-210">
 
 <p>Expected: A green box with an overlapping purple box.<br>
 The overlapping portion of the boxes should be bright magenta.<br>