Remove PathOpsSVGClipping runtime flag (status=stable)

BUG=402536

Review-Url: https://codereview.chromium.org/2314923002
Cr-Commit-Position: refs/heads/master@{#417334}

third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceClipper.cpp

@@ -108,7 +108,7 @@ bool LayoutSVGResourceClipper::calculateClipContentPathIfNeeded()
         // Multiple shapes require PathOps. In some degenerate cases PathOps can exhibit quadratic
         // behavior, so we cap the number of ops to a reasonable count.
         const unsigned kMaxOps = 42;
-        if (!RuntimeEnabledFeatures::pathOpsSVGClippingEnabled() || ++opCount > kMaxOps) {
+        if (++opCount > kMaxOps) {
             m_clipContentPath.clear();
             return false;
         }

third_party/WebKit/Source/platform/RuntimeEnabledFeatures.in

@@ -158,7 +158,6 @@ PaintUnderInvalidationChecking settable_from_internals=True
 PassiveDocumentEventListeners status=experimental
 PassiveEventListenersDueToFling status=experimental
 PassPaintVisualRectToCompositor
-PathOpsSVGClipping status=stable
 PaymentRequest status=experimental
 PerformanceObserver status=stable
 PermissionDelegation status=test