diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
index bc06f8391a84..2903feaeab9e 100644
--- a/lib/matplotlib/axes/_axes.py
+++ b/lib/matplotlib/axes/_axes.py
@@ -3555,14 +3555,6 @@ def bxp(self, bxpstats, positions=None, widths=None, vert=True,
         # empty list of xticklabels
         datalabels = []
 
-        # translates between line2D and patch linestyles
-        linestyle_map = {
-            'solid': '-',
-            'dashed': '--',
-            'dashdot': '-.',
-            'dotted': ':'
-        }
-
         zorder = mlines.Line2D.zorder
         zdelta = 0.1
         # box properties