Merge pull request #9868 from has2k1/fix-dpi

Remove access to 'savefig.dpi', use figure.dpi

IPython/core/pylabtools.py

@@ -98,8 +98,6 b" def print_figure(fig, fmt='png', bbox_inches='tight', **kwargs):"
     if not fig.axes and not fig.lines:
         return
 
-    dpi = rcParams['savefig.dpi']
-    if dpi == 'figure':
         dpi = fig.dpi
     if fmt == 'retina':
         dpi = dpi * 2