Remove the Vector::append overload that takes a Vector

Source/core/html/canvas/CanvasRenderingContext2D.cpp

Index: Source/core/html/canvas/CanvasRenderingContext2D.cpp
diff --git a/Source/core/html/canvas/CanvasRenderingContext2D.cpp b/Source/core/html/canvas/CanvasRenderingContext2D.cpp
index eca163423f93854c84a7c8661416d48dfacff396..222fbd1d02b4bec4e019e961b15ef5901c281663 100644
--- a/Source/core/html/canvas/CanvasRenderingContext2D.cpp
+++ b/Source/core/html/canvas/CanvasRenderingContext2D.cpp
@@ -501,7 +501,7 @@ void CanvasRenderingContext2D::setLineDash(const Vector<float>& dash)
     // Spec requires the concatenation of two copies the dash list when the
     // number of elements is odd
     if (dash.size() % 2)
-        modifiableState().m_lineDash.append(dash);
+        modifiableState().m_lineDash.appendVector(dash);
 
     applyLineDash();
 }