Remove py.typed

Closes #272.
diff --git a/py.typed b/py.typed
deleted file mode 100644
index e69de29..0000000
--- a/py.typed
+++ /dev/null
diff --git a/pyproject.toml b/pyproject.toml
index 52b36a8..2dee3f7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,6 @@
 include = [
   "/autoflake.py",
   "/test_autoflake.py",
-  "/py.typed",
   "/LICENSE",
   "/README.md",
 ]