Remove guardian beam render issue workaround

Messing with game time sent to the client isn't worth the trouble whenever it may be used by the client now and in the future for such a small issue. Mojang, plz fix

patches/server/0621-Add-environment-variable-to-disable-server-gui.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <riley.park@meino.net>
+Date: Mon, 17 May 2021 00:34:55 -0700
+Subject: [PATCH] Add environment variable to disable server gui
+
+
+diff --git a/src/main/java/net/minecraft/server/Main.java b/src/main/java/net/minecraft/server/Main.java
+index 727efbe152dccabf130a6871e3d2582a5a733016..2dba2853764ca1cff114d3130672fbd596604ea3 100644
+--- a/src/main/java/net/minecraft/server/Main.java
++++ b/src/main/java/net/minecraft/server/Main.java
+@@ -281,6 +281,7 @@ public class Main {
+                 */
+                 boolean flag1 = !optionset.has("nogui") && !optionset.nonOptionArguments().contains("nogui");
+ 
++                if(!Boolean.parseBoolean(System.getenv().getOrDefault("PAPER_DISABLE_SERVER_GUI", String.valueOf(false)))) // Paper
+                 if (flag1 && !GraphicsEnvironment.isHeadless()) {
+                     dedicatedserver1.showGui();
+                 }