Remove 'fix Vanilla Minecart speed' patch (#10068)

The game uses 0.95d now

patches/server/0589-Add-environment-variable-to-disable-server-gui.patch

@@ -0,0 +1,18 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Riley Park <rileysebastianpark@gmail.com>
+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 0cb453b03977e90addc26f71d0518f134af3c36a..444b21bbc596ce79007560bfb0a4008ccab1dab8 100644
+--- a/src/main/java/net/minecraft/server/Main.java
++++ b/src/main/java/net/minecraft/server/Main.java
+@@ -326,6 +326,7 @@ 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();
+                 }