删除数据中心（etcd）数据,服务schema未注册到etcd

[llongqin]

Describe the bug

删除数据中心（etcd）数据之后触发java服务重注册,java服务注册schema时因为servicecomb service center 中有缓存schema的summary,导致客户端误判为schema存在,不重注册schema。在后续服务调用时报“schema不存在的错误”
Steps to reproduce the behavior:

java服务、service center及etcd正常注册运行，删除etcd数据。
Expected behavior
java服务和schema重新注册到etcd中。

Platform And Runtime (please complete the following information):

Platform

OS: [Ubuntu]
Browser [e.g. chrome, safari]
Version [CSE-1.3.0-linux-amd64]
Additional context

schemaSummer有100个缓存

TypeSchemaSummary = state.MustRegister("SCHEMA_SUMMARY", path.GetServiceSchemaSummaryRootKey(""),
		state.WithInitSize(100),
		state.WithParser(parser.StringParser))