fix bug of delete service route

[ymybxx]

The branch of 0.2.0 is master-0.2.0. If your PR is to solve the problem of 0.2.0, please submit the PR to it.
Please do not create a Pull Request without creating an issue first.

What is the purpose of the change

删除服务级别的条件路由，实际并没有删除掉zk中provider/routers/下的内容
原因：添加的dubbo url路径带version，而删除的dubbo url没有version

Brief changelog

XX

Verifying this change

XXXX

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[haoyann]

感谢你的贡献，但是我改变这里的内容，会影响到更新方法。我的想法是在删除和更新的时候手动设置一下 route 的 servcie 字段为id。
示例：
org.apache.dubbo.admin.service.impl.RouteServiceImpl#deleteConditionRoute

    old.setService(id);
    URL oldUrl = old.toUrl();

[ymybxx]

的确，而且我的方法无法解决已在使用用户得问题。代码已经修改提交了

[haoyann]

请把黑白名单的也修改一下。

dubbo-admin/dubbo-admin-server/src/main/java/org/apache/dubbo/admin/service/impl/RouteServiceImpl.java

Line 211 in bc280e5

registry.unregister(oldRoute.toUrl());

dubbo-admin/dubbo-admin-server/src/main/java/org/apache/dubbo/admin/service/impl/RouteServiceImpl.java

Line 130 in bc280e5

Route route = RouteUtils.convertBlackWhiteListtoRoute(blackWhiteList, Constants.SERVICE, id);

[ymybxx]

黑白名单原本就是按照id更新路由的，测过没有问题

[codecov-commenter]

Codecov Report

Merging #861 (cb58156) into develop (bc280e5) will increase coverage by 0.11%.
The diff coverage is 100.00%.

@@              Coverage Diff              @@
##             develop     #861      +/-   ##
=============================================
+ Coverage      21.50%   21.62%   +0.11%     
- Complexity       424      427       +3     
=============================================
  Files            149      149              
  Lines           4683     4685       +2     
  Branches         712      712              
=============================================
+ Hits            1007     1013       +6     
+ Misses          3593     3589       -4     
  Partials          83       83              

Flag	Coverage Δ
unit	21.62% <100.00%> (+0.11%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...che/dubbo/admin/service/impl/RouteServiceImpl.java	43.66% <100.00%> (+0.49%)	⬆️
...apache/dubbo/admin/service/RegistryServerSync.java	90.27% <0.00%> (+5.55%)	⬆️

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