Remove NeedsUpdatedDistribution()

This function is now unused.

Fixed: 1158418
Change-Id: Ib714755f0a3f820b2340fb15383ed6162f822ce4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2593283
Auto-Submit: Mason Freed <masonfreed@chromium.org>
Commit-Queue: Rune Lillesveen <futhark@chromium.org>
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#837332}

third_party/blink/renderer/core/css/css_selector.cc

@@ -1175,14 +1175,6 @@ bool CSSSelector::FollowsPart() const {
   return previous->GetPseudoType() == kPseudoPart;
 }
 
-bool CSSSelector::NeedsUpdatedDistribution() const {
-  return ForAnyInTagHistory(
-      [](const CSSSelector& selector) -> bool {
-        return selector.GetPseudoType() == CSSSelector::kPseudoHostContext;
-      },
-      *this);
-}
-
 String CSSSelector::FormatPseudoTypeForDebugging(PseudoType type) {
   for (const auto& s : kPseudoTypeWithoutArgumentsMap) {
     if (s.type == type)

third_party/blink/renderer/core/css/css_selector.h

@@ -399,7 +399,6 @@ class CORE_EXPORT CSSSelector {
   bool HasShadowPseudo() const;
   // Returns true if the immediately preceeding simple selector is ::part.
   bool FollowsPart() const;
-  bool NeedsUpdatedDistribution() const;
 
   static String FormatPseudoTypeForDebugging(PseudoType);