Pipeline util name clarity. Remove unneeded handlers.

src/main/java/com/velocitypowered/proxy/connection/VelocityServer.java

@@ -34,7 +34,7 @@ public class VelocityServer {
                 .childHandler(new ChannelInitializer<Channel>() {
                     @Override
                     protected void initChannel(Channel ch) throws Exception {
-                        MinecraftPipelineUtils.strapPipelineForServer(ch);
+                        MinecraftPipelineUtils.strapPipelineForProxy(ch);
 
                         MinecraftConnection connection = new MinecraftConnection(ch);
                         connection.setState(StateRegistry.HANDSHAKE);

src/main/java/com/velocitypowered/proxy/connection/backend/ServerConnection.java

@@ -27,7 +27,7 @@ public class ServerConnection {
                 .handler(new ChannelInitializer<Channel>() {
                     @Override
                     protected void initChannel(Channel ch) throws Exception {
-                        MinecraftPipelineUtils.strapPipelineForProxy(ch);
+                        MinecraftPipelineUtils.strapPipelineForBackend(ch);
 
                         MinecraftConnection connection = new MinecraftConnection(ch);
                         connection.setState(StateRegistry.HANDSHAKE);

src/main/java/com/velocitypowered/proxy/protocol/netty/MinecraftPipelineUtils.java

@@ -7,7 +7,7 @@ import io.netty.handler.timeout.ReadTimeoutHandler;
 import java.util.concurrent.TimeUnit;
 
 public class MinecraftPipelineUtils {
-    public static void strapPipelineForServer(Channel ch) {
+    public static void strapPipelineForProxy(Channel ch) {
         ch.pipeline().addLast("read-timeout", new ReadTimeoutHandler(30, TimeUnit.SECONDS));
         ch.pipeline().addLast("legacy-ping-decode", new LegacyPingDecoder());
         ch.pipeline().addLast("frame-decoder", new MinecraftVarintFrameDecoder());
@@ -17,11 +17,9 @@ public class MinecraftPipelineUtils {
         ch.pipeline().addLast("minecraft-encoder", new MinecraftEncoder(ProtocolConstants.Direction.TO_CLIENT));
     }
 
-    public static void strapPipelineForProxy(Channel ch) {
+    public static void strapPipelineForBackend(Channel ch) {
         ch.pipeline().addLast("read-timeout", new ReadTimeoutHandler(30, TimeUnit.SECONDS));
-        ch.pipeline().addLast("legacy-ping-decode", new LegacyPingDecoder());
         ch.pipeline().addLast("frame-decoder", new MinecraftVarintFrameDecoder());
-        ch.pipeline().addLast("legacy-ping-encode", LegacyPingEncoder.INSTANCE);
         ch.pipeline().addLast("frame-encoder", MinecraftVarintLengthEncoder.INSTANCE);
         ch.pipeline().addLast("minecraft-decoder", new MinecraftDecoder(ProtocolConstants.Direction.TO_CLIENT));
         ch.pipeline().addLast("minecraft-encoder", new MinecraftEncoder(ProtocolConstants.Direction.TO_SERVER));