Apply suggestions from code review

Co-authored-by: Elliott Sales de Andrade <[email protected]>

Author: tohc1

lib/matplotlib/backends/backend_wx.py

@@ -972,7 +972,7 @@ def _onClose(self, event):
         self.canvas.close_event()
         self.canvas.stop_event_loop()
         # set FigureManagerWx.frame to None to prevent repeated attempts to
-        # close this frame from with the FigureManagerWx.destroy()
+        # close this frame from FigureManagerWx.destroy()
         if self.figmgr is not None:
             self.figmgr.frame = None
             # remove figure manager from Gcf.figs
@@ -995,10 +995,8 @@ def Destroy(self, *args, **kwargs):
         # MPLBACKEND=wxagg python -c 'from pylab import *; plot()'.
         if self and not self.IsBeingDeleted():
             super().Destroy(*args, **kwargs)
-            # This should not be necessary if the close event is allowed to
-            # propagate.
-            #if self.toolbar is not None:
-            #    self.toolbar.Destroy()
+            # self.toolbar.Destroy() should not be necessary if the close event
+            # is allowed to propagate.
         return True
 
 
@@ -1047,8 +1045,8 @@ def destroy(self, *args):
         _log.debug("%s - destroy()", type(self))
         frame = self.frame
         if frame:  # Else, may have been already deleted, e.g. when closing.
-            # as this can be called from non gui thread from plt.close use
-            # wx.CallAfter to esnure thread safety.
+            # As this can be called from non-GUI thread from plt.close use
+            # wx.CallAfter to ensure thread safety.
             wx.CallAfter(frame.Close)
 
     def full_screen_toggle(self):