remove `github.com/dubbo/go-for-apache-dubbo v1.0.0` from go.md & go.sum file.

go.mod

 module github.com/apache/dubbo-go
 
 require (
-	github.com/dubbo/go-for-apache-dubbo v1.0.0
 	github.com/dubbogo/getty v1.0.7
 	github.com/dubbogo/hessian2 v1.0.1
 	github.com/pkg/errors v0.8.1

go.sum

 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/dubbo/go-for-apache-dubbo v1.0.0 h1:d1+EmiQNGjOZuEprh7ru/aa/5/pu3lvl8vBkdFEvLuw=
-github.com/dubbo/go-for-apache-dubbo v1.0.0/go.mod h1:seatOl29ahGPWuMz4+VqqB6BSNYdHLXtnpPJ54U988Q=
-github.com/dubbogo/getty v0.0.0-20190523180329-bdf5e640ea53/go.mod h1:cRMSuoCmwc5lULFFnYZTxyCfZhObmRTNbS7XRnPNHSo=
 github.com/dubbogo/getty v1.0.7 h1:5Hg+JwXyCKm9Yr4yJkm98ahhnoa8c2h6br5QJxwQ+YU=
 github.com/dubbogo/getty v1.0.7/go.mod h1:cRMSuoCmwc5lULFFnYZTxyCfZhObmRTNbS7XRnPNHSo=
-github.com/dubbogo/hessian2 v0.0.0-20190526221400-d5610bbd0a41/go.mod h1:XFGDn4oSZX26zkcfhkM/fCJrOqwQJxk/xgWW1KMJBKM=
 github.com/dubbogo/hessian2 v1.0.1 h1:ztI7gJxR3Isxrrl2jE1IZKX61eNR93eRKGhn49vPEX8=
 github.com/dubbogo/hessian2 v1.0.1/go.mod h1:XFGDn4oSZX26zkcfhkM/fCJrOqwQJxk/xgWW1KMJBKM=
 github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=