Move CraftBukkit per-file patches

By: Initial <noreply+automated@papermc.io>

paper-server/patches/sources/net/minecraft/network/protocol/PlayerConnectionUtils.patch

@@ -0,0 +1,22 @@
+--- a/net/minecraft/network/protocol/PlayerConnectionUtils.java
++++ b/net/minecraft/network/protocol/PlayerConnectionUtils.java
+@@ -11,6 +11,11 @@
+ import net.minecraft.util.thread.IAsyncTaskHandler;
+ import org.slf4j.Logger;
+ 
++// CraftBukkit start
++import net.minecraft.server.MinecraftServer;
++import net.minecraft.server.network.ServerCommonPacketListenerImpl;
++// CraftBukkit end
++
+ public class PlayerConnectionUtils {
+ 
+     private static final Logger LOGGER = LogUtils.getLogger();
+@@ -24,6 +29,7 @@
+     public static <T extends PacketListener> void ensureRunningOnSameThread(Packet<T> packet, T t0, IAsyncTaskHandler<?> iasynctaskhandler) throws CancelledPacketHandleException {
+         if (!iasynctaskhandler.isSameThread()) {
+             iasynctaskhandler.executeIfPossible(() -> {
++                if (t0 instanceof ServerCommonPacketListenerImpl serverCommonPacketListener && serverCommonPacketListener.processedDisconnect) return; // CraftBukkit - Don't handle sync packets for kicked players
+                 if (t0.shouldHandleMessage(packet)) {
+                     try {
+                         packet.handle(t0);