Revert this entirely for now.

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

@@ -11,35 +11,36 @@ public class MinecraftVarintFrameDecoder extends ByteToMessageDecoder {
 
   @Override
   protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
-    int lastReaderIndex = in.readerIndex();
-    find_packets: while (in.isReadable()) {
+    if (!in.isReadable()) {
+      return;
+    }
+
+    int origReaderIndex = in.readerIndex();
     for (int i = 0; i < 3; i++) {
       if (!in.isReadable()) {
-          break;
+        in.readerIndex(origReaderIndex);
+        return;
       }
 
       byte read = in.readByte();
       if (read >= 0) {
         // Make sure reader index of length buffer is returned to the beginning
-          in.readerIndex(lastReaderIndex);
+        in.readerIndex(origReaderIndex);
         int packetLength = ProtocolUtils.readVarInt(in);
         if (packetLength == 0) {
-            continue find_packets;
+          return;
         }
 
         if (in.readableBytes() < packetLength) {
-            break find_packets;
+          in.readerIndex(origReaderIndex);
+          return;
         }
 
         out.add(in.readRetainedSlice(packetLength));
-          lastReaderIndex = in.readerIndex();
-          continue find_packets;
+        return;
       }
     }
 
     throw new CorruptedFrameException("VarInt too big");
   }
-
-    in.readerIndex(lastReaderIndex);
-  }
 }