Remove unused wx private attribute.

anntzer · anntzer · commit 99428e60895a · 2020-10-23T15:01:05.000+02:00
This is not used anywhere.
diff --git a/lib/matplotlib/backends/backend_wx.py b/lib/matplotlib/backends/backend_wx.py
@@ -1119,7 +1119,7 @@ def __init__(self, canvas, coordinates=True):
         self.Realize()
 
         NavigationToolbar2.__init__(self, canvas)
-        self._idle = True
+
         self._prevZoomRect = None
         # for now, use alternate zoom-rectangle drawing on all
         # Macs. N.B. In future versions of wx it may be possible to
