diff --git a/lib/matplotlib/lines.py b/lib/matplotlib/lines.py
index dc0c4cdcc0e7..1dbfc19e7dc7 100644
--- a/lib/matplotlib/lines.py
+++ b/lib/matplotlib/lines.py
@@ -1249,9 +1249,6 @@ def update_from(self, other):
                                    other._marker.get_fillstyle())
         self._drawstyle = other._drawstyle
 
-    def _get_rgba_face(self, alt=False):
-        return mcolors.to_rgba(self._get_markerfacecolor(alt=alt), self._alpha)
-
     def set_dash_joinstyle(self, s):
         """
         Set the join style for dashed linestyles.