Remove unneccessary logged warnings

SpigotCore_Main/src/de/steamwar/sql/SWException.java

@@ -52,6 +52,7 @@ public class SWException {
         reasons.add("\tat ");
         reasons.add("java.lang.Exception");
         reasons.add("[ViaVersion] Ignoring plugin channel");
+        reasons.add("[ViaBackwards] Ignoring plugin channel");
         ignorereasons = Collections.unmodifiableList(reasons);
     }