Fix sizer duplication

Author: David Stirling

cpa/dimensionreduction.py

@@ -93,7 +93,6 @@ def __init__(self, parent, size=(600, 600), loadData=True, **kwargs):
             sizer.Add(tb, 0, wx.EXPAND)
         else:
             self.SetToolBar(figpanel.get_toolbar())
-        sizer = wx.BoxSizer(wx.VERTICAL)
         sizer.Add(figpanel, 1, wx.EXPAND)
 
         configpanel = ReduxControlPanel(self, figpanel)