disable ExploitB "invalid page characters" check

Author: ManInMyVan

common/src/main/java/ac/grim/grimac/checks/impl/exploit/ExploitB.java

@@ -287,13 +287,14 @@ private boolean checkPage(String page, PacketReceiveEvent event) {
             return true;
         }
 
-        if (containsInvalidCharacters(page, true)) {
-            if (flagAndAlert("invalid page characters") && shouldModifyPackets()) {
-                event.setCancelled(true);
-                player.onPacketCancel();
-            }
-            return true;
-        }
+        // commented out because existing characters are not considered
+//        if (containsInvalidCharacters(page, true)) {
+//            if (flagAndAlert("invalid page characters") && shouldModifyPackets()) {
+//                event.setCancelled(true);
+//                player.onPacketCancel();
+//            }
+//            return true;
+//        }
 
         return false;
     }