vcs: Remove 'rhodecode.vcs.skip_error_handling' flag from environ.

rhodecode/lib/middleware/simplevcs.py

@@ -353,11 +353,6 b' class SimpleVCS(object):'
             '%s action on %s repo "%s" by "%s" from %s',
             action, self.SCM, str_repo_name, safe_str(username), ip_addr)
 
-        # Set a flag to skip error handling for VCSMiddleware responses. This
-        # prevents converting error responses to human readable error pages
-        # which otherwise confuses the command line clients.
-        environ['rhodecode.vcs.skip_error_handling'] = True
-
         return self._generate_vcs_response(
             environ, start_response, repo_path, repo_name, extras, action)