Revert "Updated AUTHORS.md"

This reverts commit 020ce00.

AUTHORS.md

@@ -19,35 +19,5 @@ The rules for this file:
   * Don't ever delete anything
 -->
 
-**2015**
-- Sean L. Seyler <@sseyler>
-- Oliver Beckstein <@orbeckst>
-- Richard Gowers <@richardjgowers>
-- Max Linke <@kain88-de>
-
-**2016**
-- Jonathan Barnoud <@jbarnoud>
-- Utkarsh Saxena <@saxenauts>
-- Tyler Reddy <@tylerjereddy>
-
-**2017**
-- Vedant Rathore <@vedantrathore>
-- Dominik Mierzejewski <@rathann>
-- Utkarsh Bansal <@utkbansal>
-
-**2019**
-- João M.C. Teixeira <@joaomcteixeira>
-
-**2020**
-- Rocco Meli <@RMeli>
-- Irfan Alibay <@IAlibay>
-
-**2022**
-- Aditi Tripathi <@aditi2906>
-- Estefania Barreto-Ojeda <@ojeda-e>
-
 **2023**
-- Pratham Chauhan <@ooprathamm>
-- Xu Hong Chen <@xhgchen>
-- Lily Wang <@lilyminium>
-- Ian Kenney <@ianmkenney>
+- MDAnalysis <@ianmkenney>