Sync with master

src/main/java/us/myles/ViaVersion/api/protocol/ProtocolVersion.java

@@ -29,7 +29,6 @@ public class ProtocolVersion {
         register(v1_9_1 = new ProtocolVersion(108, "1.9.1"));
         register(v1_9_2 = new ProtocolVersion(109, "1.9.2"));
         register(v1_9_3 = new ProtocolVersion(110, "1.9.3/4"));
-        register(v1_9_3 = new ProtocolVersion(110, "1.9.3"));
         register(SNAPSHOT = new ProtocolVersion(201, "16w20a"));
     }