RF: removed unused imports

Author: yarikoptic

heudiconv/parser.py

@@ -4,7 +4,7 @@
 from glob import glob
 import re
 
-from collections import defaultdict, OrderedDict
+from collections import defaultdict
 
 import tarfile
 from tempfile import mkdtemp
@@ -13,10 +13,6 @@
 from .utils import (
     docstring_parameter,
     StudySessionInfo,
-    load_json,
-    save_json,
-    create_file_if_missing,
-    json_dumps_pretty,
 )
 
 lgr = logging.getLogger(__name__)