Bug 9314: Remove useless code related to the type_only parameter

Bug 9314: Remove useless code related to the type_only parameter

Since the pref AddPatronLists has been removed in bug 13497, the code
related to type_only and category_type in memberentry.pl is useless.

Test plan:
Confirm you don't the information message.
You can also confirm that the message was wrong and nothing was saved.

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Dead code removed, no errors

Think that bug description can be updated to commit message

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>