Remove self from committers list (#644)

Author: rubanm

COMMITTERS.md

@@ -13,7 +13,6 @@ Please see our [Project Governance](https://github.com/twitter/analytics-infra-g
 | Oscar Boykin           | [@johnynek](https://github.com/johnynek)                  |
 | Pankaj Gupta           | [@pankajroark](https://github.com/pankajroark)            |
 | Piyush Narang          | [@piyushnarang](https://github.com/piyushnarang)          |
-| Ruban Monu             | [@rubanm](https://github.com/rubanm)                      |
 | Sriram Krishnan        | [@sriramkrishnan](https://github.com/sriramkrishnan)      |
 | Sam Ritchie            | [@sritchie](https://github.com/sritchie)                  |