Do not use binding at this stage

It wasn't clear how to utilize the "type" field in the .tmpl for our
purposes.

services/forms/repo_form.go

@@ -113,8 +113,8 @@ type RepoSettingForm struct {
 	RepoName    string `binding:"Required;AlphaDashDot;MaxSize(100)"`
 	Description string `binding:"MaxSize(2048)"`
 	Website     string `binding:"ValidUrl;MaxSize(1024)"`
-	// ToDo: Do we need validation at this point?
-	FederationRepos        string `binding:"ValidUrl;MaxSize(1024)"`
+
+	FederationRepos        string
 	Interval               string
 	MirrorAddress          string
 	MirrorUsername         string