Remove gist request comment

src/main/java/de/jeyp91/gists/GistProvider.java

@@ -189,8 +189,6 @@ public class GistProvider {
 
     private String getRawData(String requestUrl) {
 
-        System.out.println("Gist request: " + requestUrl);
-
         String auth = this.username + ":" + this.password;
         byte[] encodedAuth = Base64.encodeBase64(
                 auth.getBytes(StandardCharsets.ISO_8859_1));