v3tool: Remove unnecessary err check.

err has already been checked and is known to be nil at this point.

cmd/v3tool/main.go

@@ -1,4 +1,4 @@
-// Copyright (c) 2022-2023 The Decred developers
+// Copyright (c) 2022-2024 The Decred developers
 // Use of this source code is governed by an ISC
 // license that can be found in the LICENSE file.
 
@@ -87,11 +87,6 @@ func run() int {
 		Log:    log,
 	}
 
-	if err != nil {
-		log.Errorf("%v", err)
-		return 1
-	}
-
 	// Get list of tickets
 	tickets, err := walletRPC.getTickets(ctx)
 	if err != nil {