Code Formats, Nits & Unused Func/Var deletions (#15286)

* _ to unused func options

* rm useless brakets

* rm trifial non used models functions

* rm dead code

* rm dead global vars

* fix routers/api/v1/repo/issue.go

* dont overload import module

routers/org/teams.go

@@ -193,7 +193,7 @@ func NewTeamPost(ctx *context.Context) {
 	ctx.Data["PageIsOrgTeams"] = true
 	ctx.Data["PageIsOrgTeamsNew"] = true
 	ctx.Data["Units"] = models.Units
-	var includesAllRepositories = (form.RepoAccess == "all")
+	var includesAllRepositories = form.RepoAccess == "all"
 
 	t := &models.Team{
 		OrgID:                   ctx.Org.Organization.ID,
@@ -286,7 +286,7 @@ func EditTeamPost(ctx *context.Context) {
 
 	isAuthChanged := false
 	isIncludeAllChanged := false
-	var includesAllRepositories = (form.RepoAccess == "all")
+	var includesAllRepositories = form.RepoAccess == "all"
 	if !t.IsOwnerTeam() {
 		// Validate permission level.
 		auth := models.ParseAccessMode(form.Permission)