fixup! Add a placeholder for bokeh engine

Author: rs2

pandas/plotting/_core.py

@@ -2475,8 +2475,7 @@ def __call__(self, kind='line', ax=None,
                  rot=None, fontsize=None, colormap=None, table=False,
                  yerr=None, xerr=None,
                  label=None, secondary_y=False, **kwds):
-
-    __call__.__doc__ = plot_series.__doc__
+        pass
 
     def line(self, **kwds):
         """Line drawn using bokeh