Removed wasteful tmp-directory.

src/unitgrade_private/pipelines/dummy_handins.py

@@ -17,6 +17,8 @@ def make_dummies(zip_file_path="zip1.zip", n_handins=3, screwups=4, student_base
         if os.path.isdir(tmp):
             shutil.rmtree(tmp)
         os.mkdir(tmp)
+        print("Working in directory", tmp)
+        
         # now we got a temp dir.
         # Deploy to this dir and create handins. Turn it all into a .zip file and return it.
         np.random.seed(42)