Set OwnerPaysFee to obsolete

[intelliot]

OwnerPaysFee can be marked as obsolete.

REGISTER_FEATURE(OwnerPaysFee,                  Supported::no,  DefaultVote::no);

• OwnerPaysFee is not supported so can't be voted on anyway.

Originally posted by @RichardAH in #4282 (comment)

While the amendment is expected to work and has been implemented and tested, no one has really wanted it after 7 years. It is not listed on explorers like XRPSCAN, and it was introduced in c549c9d. FlowCross uses the functionality to do offer crossing through the payment engine, but no one seems to want the amendment, so we are fine with calling it obsolete.

[donovanhide]

Can this issue please be reopened/readdressed? I definitely would like the amendment to be enabled so that Payment transactions can achieve the same value as OfferCreate transactions. Currently Payments have the advantage of permitting multiple "hops" through order book's, AMM's and Rippling, but incur greater transfer fee expense when consuming offers.