Merge #16349: qt: Remove redundant WalletController::addWallet slot
6285a318d77dbfdf50f893963ebfb2973746f757 Remove redundant WalletController::addWallet slot (Hennadii Stepanov)
Pull request description:
~~Fix #15453.~~ It is fixed by https://github.com/bitcoin/bitcoin/pull/16348#issuecomment-509308347
The _only_ reason of these lines on master (8c69fae94410f54bad13be0f34d54370fddbf4b3)
is to `Q_EMIT walletAdded(wallet_model);` in a thread-safe manner;
This PR makes this in a line of code:
To establish the ownership of a new `WalletModel` object is not necessary on the master (https://github.com/bitcoin/bitcoin/pull/16349#discussion_r301679192 by **promag**).
> it's good habit to set ownership
And I agree. It is a safe practice.
ACKs for top commit:
utACK 6285a318d77dbfdf50f893963ebfb2973746f757. Only change since last review is rebasing and restoring a deleted comment. I do think the comments I suggested last review would be better than this one, but this is at least better than before.