Temporarily shift L7 timeout value to L4 value of 30s.

nms-patches/PlayerConnection.patch

@@ -97,6 +97,15 @@
  
      public void e() {
          this.syncPosition();
+@@ -104,7 +177,7 @@
+         this.minecraftServer.methodProfiler.a("keepAlive");
+         long i = this.d();
+ 
+-        if (i - this.f >= 15000L) {
++        if (i - this.f >= 30000L) { // CraftBukkit
+             if (this.g) {
+                 this.disconnect(new ChatMessage("disconnect.timeout", new Object[0]));
+             } else {
 @@ -116,15 +189,21 @@
          }