DOC: Enforce Numpy Docstring Validation for pandas.Index.to_list (#58398)

* DOC: added RT03 to pandas.Index.to_list

* DOC: remove pandas.Index.to_list

* DOC: remove pandas.Series.tolist

Author: tuhinsharma121

Diff for: ci/code_checks.sh

@@ -147,7 +147,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.Index.str PR01,SA01" \
         -i "pandas.Index.symmetric_difference PR07,RT03,SA01" \
         -i "pandas.Index.take PR01,PR07" \
-        -i "pandas.Index.to_list RT03" \
         -i "pandas.Index.union PR07,RT03,SA01" \
         -i "pandas.Index.view GL08" \
         -i "pandas.Int16Dtype SA01" \
@@ -368,7 +367,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.Series.swaplevel SA01" \
         -i "pandas.Series.to_dict SA01" \
         -i "pandas.Series.to_frame SA01" \
-        -i "pandas.Series.to_list RT03" \
         -i "pandas.Series.to_markdown SA01" \
         -i "pandas.Series.to_string SA01" \
         -i "pandas.Series.truediv PR07" \

Diff for: pandas/core/base.py

@@ -789,6 +789,7 @@ def tolist(self) -> list:
         Returns
         -------
         list
+            List containing the values as Python or pandas scalers.
 
         See Also
         --------