Revert "Fix offset contours for concave corners"

This reverts commit 0e59b495250929d4295f232e03bba5eab1d5248c.

Reason for revert: Causing Failures in Mac13 Test bots

Failure Link: first failing run https://ci.chromium.org/ui/p/chromium/builders/ci/Mac13%20Tests/42210/overview

Original change's description:
> Fix offset contours for concave corners
>
> Clamp contour miter intersections to their target edges so asymmetric
> concave corners do not produce stray outline and shadow segments.
>
> Bug: 532190484
> Change-Id: I29dfa1d4e072f1692f041417892f33ff60dfda39
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8128561
> Commit-Queue: Helmut Januschka <helmut@januschka.com>
> Reviewed-by: Noam Rosenthal <nrosenthal@google.com>
> Cr-Commit-Position: refs/heads/main@{#1668453}

Bug: 532190484
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Change-Id: I4ed8fb2f2afea019be369bcff2c6145da75a80ce
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8158379
Commit-Queue: Ahmed Moussa <ahmedmoussa@google.com>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Ahmed Moussa <ahmedmoussa@google.com>
Owners-Override: Ahmed Moussa <ahmedmoussa@google.com>
Cr-Commit-Position: refs/heads/main@{#1668861}

Author: ahmedmoussa10

css/css-borders/corner-shape/render-corner-shape.html

@@ -4,11 +4,7 @@
     <title>Render corner shape</title>
     <link rel="match" href="render-corner-shape-ref.html" >
     <link rel="help" href="https://drafts.csswg.org/css-borders-4/#corner-shape-rendering">
-    <meta name="fuzzy" content="maxDifference=0-255;totalPixels=0-400">
-    <meta
-      name="variant"
-      content="?width=80&height=80&border-top-left-radius=10,50&corner-top-left-shape=-0.5&shadow-spread=15"
-    >
+    <meta name="fuzzy" content="maxDifference=0-200;totalPixels=0-400">
     <meta
       name="variant"
       content="?border-top-right-radius=100&corner-top-right-shape=0&shadow-spread=30"