diff --git a/core/files.py b/core/files.py
deleted file mode 100644
index d9b60f1..0000000
--- a/core/files.py
+++ /dev/null
@@ -1,4 +0,0 @@
-def open_file(file_name):
-    with open(file_name) as f:
-        lines = f.readlines()
-    return lines