Remove geshi service

Author: Crizz0

config/services.yml

@@ -33,7 +33,6 @@ services:
             - '@phpbbde.pastebin.functions.pastebin'
             - '%core.root_path%'
             - '%core.php_ext%'
-            - '%phpbbde.pastebin.geshi%'
             - '%phpbbde.pastebin.geshilangs%'
             - '%tables.phpbbde.pastebin.pastebin%'
     phpbbde.pastebin.base_listener: