Move a static member function nodeIsUserSelectNone() out from PositionAlgorithm template class

Source/core/editing/Position.cpp

Index: Source/core/editing/Position.cpp
diff --git a/Source/core/editing/Position.cpp b/Source/core/editing/Position.cpp
index 5c458e5eba619acdeee2e3329262443a45c3765e..6197386f032bc712af58723b69fca133ac61ffa2 100644
--- a/Source/core/editing/Position.cpp
+++ b/Source/core/editing/Position.cpp
@@ -819,8 +819,7 @@ bool PositionAlgorithm<Strategy>::hasRenderedNonAnonymousDescendantsWithHeight(L
     return false;
 }
 
-template <typename Strategy>
-bool PositionAlgorithm<Strategy>::nodeIsUserSelectNone(Node* node)
+bool nodeIsUserSelectNone(Node* node)
 {
     return node && node->layoutObject() && !node->layoutObject()->isSelectable();
 }