Get rid of checks when creating constructs. Check should handle this.

logo.go

@@ -11,13 +11,9 @@ type Logo struct {
 	URI string `xml:",chardata"` // IRI
 }
 
-// NewLogo creates a new Logo. It returns a *Logo and an error.
-func NewLogo(uri string) (*Logo, error) {
-	if !isValidIRI(uri) {
-		return nil, fmt.Errorf("uri %v not correctly formatted", uri)
-	}
-
-	return &Logo{URI: uri}, nil
+// NewLogo creates a new Logo. It returns a *Logo.
+func NewLogo(uri string) *Logo {
+	return &Logo{URI: uri}
 }
 
 // Check checks the Logo for incompatibilities with RFC4287. It returns an