Start cleaning up linter errors. (#358)

* Start cleaning up linter errors. For #357

* Fix unmarshalling NullTime values

* More linter fixes

* Remove commented code

* Move defer up

* Consolidate error check lines

* Move error check to make sure row iteration was successful

* Cleaner error check + do not recreate pipe if it exists

* Consolidate hashing to generate client id

core/storage.go

@@ -5,10 +5,6 @@ import (
 	"github.com/owncast/owncast/core/storageproviders"
 )
 
-var (
-	usingExternalStorage = false
-)
-
 func setupStorage() error {
 	handler.Storage = _storage