component/headless-chromium: no need to run autoninja twice

component/headless-chromium/buildout.cfg

@@ -87,8 +87,7 @@ configure-command =
 # and Safari do not support constructible stylesheets yet (see e.g.
 # https://bugzilla.mozilla.org/show_bug.cgi?id=1520690).
 make-binary =
-# This is most certainly a massive hack, but retrying possibly works...
-  autoninja -C ${:location} headless_shell || autoninja -C ${:location} headless_shell
+  autoninja -C ${:location} headless_shell
 environment =
 # Possible foot-gun: if you specify PATH=...:$PATH, it will literally insert the string '$PATH' on your PATH; buildout won't do the expansion unless you use %(PATH)s
 # TODO: make sure it's appropriate for SlapOS components to depend on things in /bin, /usr/bin, etc.