Wallet: Fix unused variable compiler warning

[tmoravec]

g++ 7.4.0 on Ubuntu 18.04

Alternatively, if we prefer to keep the variable around, we can silence it with something like

   bool refreshed = false;
+  (void)refreshed;

[moneromooo-monero]

I'd rather this stays in for now because I still have to investigate what value it should have.

[tmoravec]

I'd rather this stays in for now because I still have to investigate what value it should have.

Ok, the other option works as well. Updated the commit.

[moneromooo-monero]

Since this also removes the warning, I don't see how it's better :)

[selsta]

Removed here: #6097 (comment)

[selsta]

Superseded by #8359