Refactorings to get tests passing with local Ganache setup

- removes assertions against data with timestamps to facilitate running
the tests against a freshly setup local Ganache instance
- also applies a few `go vet` and `go fmt` changes

pkg/fakes/mock_rpc_client.go

@@ -67,4 +67,4 @@ func (client *MockRpcClient) SupportedModules() (map[string]string, error) {
 
 func (client *MockRpcClient) SetSupporedModules(supportedModules map[string]string) {
 	client.supportedModules = supportedModules
-}
+}