Update maintainers list in MAINTAINERS.md

Removed email addresses from maintainers list and updated organization for Andrew Stein.

Author: timkpaine

MAINTAINERS.md

@@ -4,11 +4,10 @@ This file lists the maintainers of this repository.
 
 ## Current maintainers
 
-| GitHub Username | Name | Organization | Email |
+| GitHub Username | Name | Organization |
 |----------------|------|--------------|-------|
-| @neilslinger | Neil Slinger | @jpmorganchase | *please add email* |
-| @texodus | Andrew Stein | *please add organization* | *please add email* |
-| @timkpaine | Tim Paine | @Point72 | *please add email* |
+| @texodus | Andrew Stein |  |
+| @timkpaine | Tim Paine | @Point72 |
 
 For information about maintainer responsibilities and resources, see the [FINOS Maintainers Cheatsheet](https://community.finos.org/docs/finos-maintainers-cheatsheet).
 
@@ -20,4 +19,4 @@ All changes to the maintainer list are managed openly:
 - **If your project's governance requires a vote**, document or link to the vote outcome in the PR description or comments.
 - This process creates a public audit trail of project leadership over time.
 
-Please email **help@finos.org** whenever this file is updated with a change to maintainership.
+Please email **help@finos.org** whenever this file is updated with a change to maintainership.