software/nginx-push-stream: remove unused [versions]

inotifyx is not used by this software

software/nginx-push-stream/software.cfg

@@ -30,6 +30,3 @@ recipe = slapos.recipe.template
 url = ${:_profile_base_location_}//${:filename}
 output = ${buildout:directory}/instance-nginx.cfg.in
 mode = 0644
-
-[versions]
-inotifyx = 0.2.2