fix(py_library): don't return transitive srcs as defaultinfo (#221)

Author: alexeagle

py/private/py_library.bzl

@@ -129,7 +129,7 @@ def _py_library_impl(ctx):
 
     return [
         DefaultInfo(
-            files = depset(direct = ctx.files.srcs, transitive = [transitive_srcs]),
+            files = depset(direct = ctx.files.srcs),
             default_runfiles = runfiles,
         ),
         PyInfo(