Remove @anurse from maintainers (#941)

Author: analogrelay

MAINTAINERS.md

@@ -8,7 +8,6 @@ See [CONTRIBUTING.md](https://github.com/grpc/grpc-community/blob/master/CONTRIB
 for general contribution guidelines.
 
 ## Maintainers (in alphabetical order)
-- [anurse](https://github.com/anurse), Microsoft Corporation
 - [apolcyn](https://github.com/apolcyn), Google LLC
 - [davidfowl](https://github.com/davidfowl), Microsoft Corporation
 - [JamesNK](https://github.com/JamesNK), Microsoft Corporation