Move avatar link creation to user

Author: LucaScorpion

src/main/java/com/scorpiac/javarant/DevRant.java

@@ -140,14 +140,4 @@ static JsonObject request(String url) {
     static String link(String url) {
         return BASE_URL + url;
     }
-
-    /**
-     * Create a link to an avatar.
-     *
-     * @param avatarUrl The avatar url.
-     * @return The complete url.
-     */
-    static String avatarLink(String avatarUrl) {
-        return AVATARS_URL + "/" + avatarUrl;
-    }
 }

src/main/java/com/scorpiac/javarant/User.java

@@ -161,7 +161,7 @@ public String userLink() {
 
     public String avatarLink() {
         fetchData();
-        return DevRant.avatarLink(avatar);
+        return DevRant.AVATARS_URL + "/" + avatar;
     }
 
     /**