update authors list

Author: Scisco

AUTHORS.txt

@@ -5,7 +5,5 @@ Scisco https://github.com/scisco
 Marc Farra https://github.com/kamicut
 Drew Bollinger https://github.com/drewbo
 Alex Kappel https://twitter.com/alex_kappel
-Eric Miller https://github.com/millerEric
-Yuriy Czoli https://github.com/YKCzoli
 
 See also https://github.com/developmentseed/landsat-util/graphs/contributors.