remove unwanted var

multibuild.py

@@ -19,9 +19,6 @@ from buildbot.plugins import steps, util
 from .lib.renderers import *
 
 
-os_codename='bionic'
-
-
 def find_artifacts(directory="out"):
     """
     find artifacts (any file) in a directory
@@ -95,7 +92,7 @@ if __name__ == "__main__":
         branch = sys.argv[3]
         buildbotUrl = sys.argv[4]
 
-        trigger_child_hooks(buildbotUrl, repository, branch, ".buildbot")
+        trigger_child_hooks(buildbotUrl, repository, branch)
     else:
         print(
             "Usage: python3 multibuild.py <jobname> <repository> <branch> <buildbotUrl> "