Fixed up Discord RPC

build.gradle

@@ -197,7 +197,6 @@ project(":desktop"){
         implementation "com.github.Anuken:steamworks4j:$steamworksVersion"
 
         implementation arcModule("backends:backend-sdl")
-        //implementation 'com.github.MinnDevelopment:java-discord-rpc:v2.0.1'
     }
 }
 

desktop/src/mindustry/desktop/DesktopLauncher.java

@@ -11,6 +11,7 @@ import arc.func.*;
 import arc.math.*;
 import arc.struct.*;
 import arc.util.*;
+import arc.util.async.*;
 import arc.util.serialization.*;
 import com.codedisaster.steamworks.*;
 import mindustry.*;