Remove a bunch of unused or never-set settings.

sky/engine/core/dom/Position.cpp

Index: sky/engine/core/dom/Position.cpp
diff --git a/sky/engine/core/dom/Position.cpp b/sky/engine/core/dom/Position.cpp
index bfdd7bed98629141cfc91a384dfe097094b62b98..e21a7de1ba32ab96fea27e7f366a6ed0742cb8aa 100644
--- a/sky/engine/core/dom/Position.cpp
+++ b/sky/engine/core/dom/Position.cpp
@@ -816,9 +816,7 @@ bool Position::isCandidate() const
             return m_anchorNode->hasEditableStyle() && !Position::nodeIsUserSelectNone(deprecatedNode()) && atEditingBoundary();
         }
     } else {
-        LocalFrame* frame = m_anchorNode->document().frame();
-        bool caretBrowsing = frame->settings() && frame->settings()->caretBrowsingEnabled();
-        return (caretBrowsing || m_anchorNode->hasEditableStyle()) && !Position::nodeIsUserSelectNone(deprecatedNode()) && atEditingBoundary();
+        return m_anchorNode->hasEditableStyle() && !Position::nodeIsUserSelectNone(deprecatedNode()) && atEditingBoundary();
     }
 
     return false;