retired old correlation utils

Author: CommonClimate

pyleoclim/core/series.py

@@ -3936,8 +3936,6 @@ def correlation(self, target_series, alpha=0.05, statistic='pearsonr', method =
         See also
         --------
 
-        pyleoclim.utils.correlation.corr_sig : Correlation function (marked for deprecation)
-
         pyleoclim.utils.correlation.association : SciPy measures of association between variables
 
         pyleoclim.series.surrogates : parametric and non-parametric surrogates of any Series object