summon: adjust comments

dvc/api.py

@@ -78,6 +78,7 @@ def _make_repo(repo_url, rev=None):
 
 
 def summon(name, fname="dvcsummon.yaml", args=None, repo=None, rev=None):
+    # TODO: Write a meaningful docstring about `summon`
     with _make_repo(repo, rev=rev) as _repo:
 
         def pull_dependencies(deps):

tests/func/test_api.py

@@ -148,7 +148,6 @@ def test_summon(tmp_dir, erepo_dir, dvc, monkeypatch):
         }
     )
 
-    # XXX: Chdir because `stage.create` defaults to `wdir = os.curdir`
     with monkeypatch.context() as m:
         m.chdir(fspath(erepo_dir))