Simplify type handling in ASN1_TIME_set_string_internal()

Simplify type handling in ASN1_TIME_set_string_internal()

ASN1_time_parse() takes a mode argument. If mode != 0, there is a check
that mode is the same as the time type returned by asn1_time_parse_cbs()
otherwise ASN1_time_parse() fails. Therefore the type == mode checks in
ASN1_set_string_internal() are redundant and can be removed.

ok beck