fix title of center of mass plots

xsocs/gui/view/fitview/Plotter.py

@@ -82,7 +82,6 @@ class CentroidPlotter(Plotter):
     """Plot center-of-mass/Max results"""
 
     def plotFit(self, plot, x, peakParams):
-        plot.setGraphTitle('center of mass')
         for peakName, peak in peakParams.items():
             center = peak.get('COM')
             xmax = peak.get('Pos_max')