Cleanup fixes (#1422)

* cleanup: remove dead code

removing some code that does nothing

* cleanup: fixing usage of deprecated gqlgen/graphql api in api/changeset_translator

* cleanup: changing to recommended comparison methods

Changing byte and case-insensitive string comparison to the recommended methods.

* cleanup: making staticcheck happy

pkg/scraper/stashbox/stash_box.go

@@ -573,7 +573,7 @@ func (c Client) FindStashBoxPerformerByName(name string) (*models.ScrapedScenePe
 
 	var ret *models.ScrapedScenePerformer
 	for _, performer := range performers.SearchPerformer {
-		if strings.ToLower(performer.Name) == strings.ToLower(name) {
+		if strings.EqualFold(performer.Name, name) {
 			ret = performerFragmentToScrapedScenePerformer(*performer)
 		}
 	}