Issues with RBF no longer being toggleable

I understand that the Replace-By-Fee toggle was intentionally removed from Electrum 4.4, but this is pretty much a deal breaker. Regardless of the intentions of the update and whether or not "non-replaceable" transactions are in fact replaceable or not, that doesn't change the fact that major payment providers treat RBFed and non-RBFed transactions differently, which means that if you still want to keep using them you simply cannot upgrade to 4.4.

Additionally it is not mentioned in the update notes that I can see. Furthermore it is not possible to simply downgrade, since Electrum 4.4 silently upgrades wallets to a format that can no longer be accessed by 4.3 and earlier, which makes it a pretty nasty trap overall, since you'd have to revert the wallet from a backup or at worst restore it from a seed, losing all the transaction descriptions in the process.

Please revert this change, or at least make it a config file option if you don't want to "clutter" the UI.

No files or tests are named. Start by tracing the Electrum 4.4 change that removed the Replace-By-Fee toggle, then review the update notes and wallet-format upgrade behavior described in the issue. Done means RBF behavior can be configured or reverted without breaking wallet compatibility.