DOC: remove savefig references from the docs v0.7.3 (#27990)

Author: bhavaniravi

doc/source/whatsnew/v0.7.3.rst

@@ -25,8 +25,6 @@ New features
    from pandas.tools.plotting import scatter_matrix
    scatter_matrix(df, alpha=0.2)        # noqa F821
 
-.. image:: ../savefig/scatter_matrix_kde.png
-   :width: 5in
 
 - Add ``stacked`` argument to Series and DataFrame's ``plot`` method for
   :ref:`stacked bar plots <visualization.barplot>`.
@@ -35,15 +33,11 @@ New features
 
    df.plot(kind='bar', stacked=True)    # noqa F821
 
-.. image:: ../savefig/bar_plot_stacked_ex.png
-   :width: 4in
 
 .. code-block:: python
 
    df.plot(kind='barh', stacked=True)   # noqa F821
 
-.. image:: ../savefig/barh_plot_stacked_ex.png
-   :width: 4in
 
 - Add log x and y :ref:`scaling options <visualization.basic>` to
   ``DataFrame.plot`` and ``Series.plot``