doc: remove outdated README.1ST

README.1ST

@@ -1,24 +0,0 @@
-                 ooooo     ooo  ooooooooo.  ooooooo  ooooo
-                 `888'     `8'  `888   `Y88. `8888    d8'
-                  888       8    888   .d88'   Y888..8P
-                  888       8    888ooo88P'     `8888'
-                  888       8    888           .8PY888.
-                  `88.    .8'    888          d8'  `888b
-                    `YbodP'     o888o       o888o  o88888o
-
-
-                    The Ultimate Packer for eXecutables
-   Copyright (c) 1996-2022 Markus Oberhumer, Laszlo Molnar & John Reiser
-                           https://upx.github.io
-
-
-MAJOR NEWS IN UPX 3
-===================
-
-The main news since UPX 2 are:
-
-  * new format: added support for linux elf/arm
-
-  * better compression using the LZMA algorithm (option '--lzma')
-
-  * better support for MacOS