Get rid of a redundant function alias positionBeforeNode()

third_party/WebKit/Source/core/editing/Position.h

Index: third_party/WebKit/Source/core/editing/Position.h
diff --git a/third_party/WebKit/Source/core/editing/Position.h b/third_party/WebKit/Source/core/editing/Position.h
index e43c78665f47c77c88db897226b6d2d5170f9cbe..45123a1e277388f766d1db1facaebce98ce8a726 100644
--- a/third_party/WebKit/Source/core/editing/Position.h
+++ b/third_party/WebKit/Source/core/editing/Position.h
@@ -253,8 +253,8 @@ PositionTemplate<Strategy> PositionTemplate<Strategy>::inParentAfterNode(const N
     return PositionTemplate<Strategy>(Strategy::parent(node), Strategy::index(node) + 1);
 }
 
-// positionBeforeNode and Position::afterNode return neighbor-anchored positions,
-// construction is O(1)
+// |Position::beforeNode()| and |Position::afterNode()| return neighbor-anchored
+// positions, construction is O(1)
 template <typename Strategy>
 PositionTemplate<Strategy> PositionTemplate<Strategy>::beforeNode(Node* anchorNode)
 {
@@ -262,11 +262,6 @@ PositionTemplate<Strategy> PositionTemplate<Strategy>::beforeNode(Node* anchorNo
     return PositionTemplate<Strategy>(anchorNode, PositionAnchorType::BeforeAnchor);
 }
 
-inline Position positionBeforeNode(Node* anchorNode)
-{
-    return Position::beforeNode(anchorNode);
-}
-
 template <typename Strategy>
 PositionTemplate<Strategy> PositionTemplate<Strategy>::afterNode(Node* anchorNode)
 {