doc[protocol]: update readme

protocol/README.md

@@ -122,17 +122,6 @@ For complex objects, ZFOO package size 2216, KRYO package size 2528, and Protobu
 
 - The protocol class must be a simple javabean, not inheriting from any other class, but can inherit an interface
 
-- In order to prevent objects in the code and avoid some potential concurrency problems caused by the mixing of objects
-  in the protocol layer and the po layer, zfoo mandates that protocol classes must implement the IPacket interface
-
-```
-Now the interface of IPacket is just an identification interface, inheriting the design of IPacket is mainly to make 
-the code more elegant and easier to understand, and it is not a lot of work to inherit only Object
-
-The design of inheriting IPacket also has cross-language considerations, which greatly simplifies the difficulty 
-of serialization and deserialization in other languages and unifies the code implementation of other languages
-```
-
 - The protocol number is defined as a short type to reduce the packet size and memory size, a packet can be reduced by 2
   bytes, and the application memory of each protocol can also be reduced by 6 byte(protocols + IProtocolRegistration +
   protocolIdMap)
@@ -146,7 +135,7 @@ your protocol number a little more compactly, so that your protocol number will
     - The first uses annotations: @Protocol(id = protocolId)
       ```
       @Protocol(id = 104)
-      public class SimpleObject implements IPacket {
+      public class SimpleObject {
       
           public int c;
           public boolean g;
@@ -158,7 +147,7 @@ your protocol number a little more compactly, so that your protocol number will
     - The second use: Register the agreement through Protocol Manager.initProtocolAuto() without writing the protocol
       number
       ```
-      public class SimpleObject implements IPacket {
+      public class SimpleObject {
       
           public int c;
       

protocol/README_CN.md

@@ -99,14 +99,6 @@ cpu： i9900k
 
 - 协议类必须是简单的javabean，不能继承任何其它的类，但是可以继承接口
 
-- 为了防止代码里Object满天飞，避免协议层和po层混用对象造成一些潜在的并发问题，zfoo强制要求协议类必须实现IPacket接口
-
-```
-现在IPacket的接口只是一个标识接口，继承IPacket的设计主要是为了让代码更优雅，容易理解一点，改为只继承Object也并没有很大工作量
-
-继承IPacket的设计还有跨语言层面上的考虑，极大的简化了实现其它语言的序列化和反序列化难度，统一了其它语言的代码实现
-```
-
 - 协议号定义为short类型是为了减少包体积和内存大小，一个包可以减少2个byte，每个协议的在应用内存也可以降低6byte（protocols +
   IProtocolRegistration + protocolIdMap）
 
@@ -118,7 +110,7 @@ cpu： i9900k
     - 第一种使用注解：@Protocol(id = protocolId)
       ```
       @Protocol(id = 104)
-      public class SimpleObject implements IPacket {
+      public class SimpleObject {
       
           public int c;
           public boolean g;
@@ -128,7 +120,7 @@ cpu： i9900k
 
     - 第二种使用：通过ProtocolManager.initProtocolAuto()去注册协议就可以不写协议号
       ```
-      public class SimpleObject implements IPacket {
+      public class SimpleObject {
       
           public int c;