Drop no-longer-used isort configuration

Author: pradyunsg

.editorconfig

@@ -12,16 +12,6 @@ trim_trailing_whitespace = true
 indent_style = space
 indent_size = 4
 
-[*.py]
-# https://github.com/timothycrosley/isort/wiki/isort-Settings
-line_length=120
-known_first_party=junction
-multi_line_output=3
-default_section=THIRDPARTY
-import_heading_stdlib=Standard Library
-import_heading_firstparty=Junction Stuff
-import_heading_thirdparty=Third Party Stuff
-
 [*.yml]
 indent_style = space
 indent_size = 2