A few minor code inspection fixes (#18393)

* swarm/network: fix code inspection problems

- typos
- redundant import alias

* p2p/simulations: fix code inspection problems

- typos
- unused function parameters
- redundant import alias
- code style issue: snake case

* swarm/network: fix unused method parameters inspections

p2p/simulations/connect_test.go

@@ -25,6 +25,7 @@ import (
 )
 
 func newTestNetwork(t *testing.T, nodeCount int) (*Network, []enode.ID) {
+	t.Helper()
 	adapter := adapters.NewSimAdapter(adapters.Services{
 		"noopwoop": func(ctx *adapters.ServiceContext) (node.Service, error) {
 			return NewNoopService(nil), nil