lint: simplify code (gosimple)

Replaces infinite for loops containing a select on a channel with a
single case with a range over the channel.

Removes redundant assignments to blank identifiers.

Remove unnecessary guard clause around delete().

Remove `if condition { return true } return false` with return condition

Signed-off-by: Moritz Poldrack <moritz@poldrack.dev>
Acked-by: Robin Jarry <robin@jarry.cc>

commands/mode/noquit.go

@@ -19,8 +19,5 @@ func NoQuitDone() {
 // QuitAllowed checks if aerc can exit normally (only when all goroutines that
 // requested a no-quit mode were done and called the NoQuitDone() function)
 func QuitAllowed() bool {
-	if atomic.LoadInt32(&noquit) > 0 {
-		return false
-	}
-	return true
+	return atomic.LoadInt32(&noquit) <= 0
 }