config: Remove context field

No longer used.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

kas/build.py

@@ -74,7 +74,6 @@ class Build:
 
         ctx = create_global_context()
         ctx.config = Config(args.config, args.target, args.task)
-        ctx.config.set_context(ctx)
 
         macro = Macro()
 

kas/config.py

@@ -40,19 +40,12 @@ class Config:
         self.filename = os.path.abspath(filename)
         self.handler = IncludeHandler(self.filename)
         self.repo_dict = self._get_repo_dict()
-        self.context = None
 
         if target:
             self._config['target'] = target
         if task:
             self._config['task'] = task
 
-    def set_context(self, ctx):
-        """
-            Set a reference to the ctx that includes this config
-        """
-        self.context = ctx
-
     def find_missing_repos(self):
         """
             Returns repos that are in config but not on disk

kas/shell.py

@@ -78,7 +78,6 @@ class Shell:
 
         ctx = create_global_context()
         ctx.config = Config(args.config, args.target, None)
-        ctx.config.set_context(ctx)
 
         macro = Macro()