DOC: remove okwarning/okexcept for fixed issues (#27150)

Author: jorisvandenbossche

doc/source/getting_started/10min.rst

@@ -712,7 +712,6 @@ See the :ref:`Plotting <visualization>` docs.
    plt.close('all')
 
 .. ipython:: python
-   :okwarning:
 
    ts = pd.Series(np.random.randn(1000),
                   index=pd.date_range('1/1/2000', periods=1000))

doc/source/user_guide/missing_data.rst

@@ -458,7 +458,6 @@ You can mix pandas' ``reindex`` and ``interpolate`` methods to interpolate
 at the new values.
 
 .. ipython:: python
-   :okexcept:
 
    ser = pd.Series(np.sort(np.random.uniform(size=100)))