reverted my changes of slack usernames

proposals/meshbits/README.md

@@ -47,16 +47,12 @@ We intend to invest the revenue from notary node operations in growing the Komod
 
 ### [Satinder Grewal]
 
-   - Komodo Platform Slack Username: `grewalsatinder`
-
 Seasoned veteran in Technology and BlockChain space capable of wearing multiple hats simultaneously who has been a Linux Administrator, Software Developer, Penetration Tester, Business Analyst in previous roles.
 Satinder has been involved with the Komodo-Platform since the **Supernet days** and has now influenced Nitin in teaming up.
 Based in New Zealand now.
 
 ### [Nitin Sharma]
 
-   - Komodo Platform Slack Username: `ns408`
-
 Seasoned Solutions Architect/DevOps Engineer working in a PCI, ISM (Information Security Manual produced by Australian Signals Directorate) environment who in day-to-day work wears the hat of an Iteration Manager, AWS Architect, DevOps Lead, the-guy-who-simplifies-tech-jargon-for-business-people. Nitin is relatively a newcomer in the Komodo Platform space but is catching up fast.
 Based in Australia now.