fixed resample.Resampler docstring errors in min, max, mean, prod, std, var as indicated by vaildate_docstrings.py

Author: knowltod

ci/code_checks.sh

@@ -87,14 +87,8 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.core.groupby.DataFrameGroupBy.boxplot PR07,RT03,SA01" \
         -i "pandas.core.groupby.DataFrameGroupBy.plot PR02" \
         -i "pandas.core.groupby.SeriesGroupBy.plot PR02" \
-        -i "pandas.core.resample.Resampler.max PR01,RT03,SA01" \
-        -i "pandas.core.resample.Resampler.mean SA01" \
-        -i "pandas.core.resample.Resampler.min PR01,RT03,SA01" \
-        -i "pandas.core.resample.Resampler.prod SA01" \
         -i "pandas.core.resample.Resampler.quantile PR01,PR07" \
-        -i "pandas.core.resample.Resampler.std SA01" \
         -i "pandas.core.resample.Resampler.transform PR01,RT03,SA01" \
-        -i "pandas.core.resample.Resampler.var SA01" \
         -i "pandas.errors.NullFrequencyError SA01" \
         -i "pandas.errors.NumbaUtilError SA01" \
         -i "pandas.errors.PerformanceWarning SA01" \