Make Js5Response extend DefaultByteBufHolder

This is possible now it is no longer a subclass of a sealed class.

Signed-off-by: Graham <gpe@openrs2.org>

protocol/src/main/kotlin/org/openrs2/protocol/js5/Js5Response.kt

@@ -1,43 +1,11 @@
 package org.openrs2.protocol.js5
 
 import io.netty.buffer.ByteBuf
-import io.netty.util.ReferenceCounted
+import io.netty.buffer.DefaultByteBufHolder
 
 public data class Js5Response(
     public val prefetch: Boolean,
     public val archive: Int,
     public val group: Int,
     public val data: ByteBuf
-) : ReferenceCounted {
-    override fun refCnt(): Int {
-        return data.refCnt()
-    }
-
-    override fun retain(): Js5Response {
-        data.retain()
-        return this
-    }
-
-    override fun retain(increment: Int): Js5Response {
-        data.retain(increment)
-        return this
-    }
-
-    override fun touch(): Js5Response {
-        data.touch()
-        return this
-    }
-
-    override fun touch(hint: Any?): Js5Response {
-        data.touch(hint)
-        return this
-    }
-
-    override fun release(): Boolean {
-        return data.release()
-    }
-
-    override fun release(decrement: Int): Boolean {
-        return data.release(decrement)
-    }
-}
+) : DefaultByteBufHolder(data)