Convert to Method Group Resharper

I have written a method below like this:

internal static IList<EmpowerTaxView> GetEmpowerTaxViewsByLongAgencyAndAgencyTaxTypes(
   IList<EmpowerCompanyTaxData> validEmpowerCompanyTaxDatas,
   IList<EmpowerTaxView> empowerTaxViews)
{
    IList<EmpowerTaxView> result = new List<EmpowerTaxView>();

    foreach (EmpowerCompanyTaxData empowerCompanyTaxData in validEmpowerCompanyTaxDatas)
    {
         IList<EmpowerTaxView> validEmpowerTaxViews =
           GetEmpowerTaxViewsByLongAgencyAndTaxType(
             empowerCompanyTaxData, empowerTaxViews);

         validEmpowerTaxViews.ToList().ForEach(delegate(EmpowerTaxView etv)
         {
              result.Add(etv);   
         });   
    }

    return result;
}

And for this method, the resharper says:

validEmpowerTaxViews.ToList().ForEach(delegate(EmpowerTaxView etv)
{
    result.Add(etv);   
});

Convert to Method Group. What does this mean and what should be done to get rid of this.