Remove flags that enable the new python path behavior

The new behavior has been enabled by default, and these
flags aren't necessary anymore.

Fixes: 245583294
Test: m py_dont_import_folder_of_entrypoint_test && /ssd/aosp-master/out/host/linux-x86/testcases/py_dont_import_folder_of_entrypoint_test/x86_64/py_dont_import_folder_of_entrypoint_test
Change-Id: I5b6f98da51791bc5d28662ef799a10c1bb6a35a0
diff --git a/python/scripts/stub_template_host.txt b/python/scripts/stub_template_host.txt
index a0ddffe..5eedc18 100644
--- a/python/scripts/stub_template_host.txt
+++ b/python/scripts/stub_template_host.txt
@@ -23,16 +23,7 @@
     zf.extractall(runfiles_path)
     zf.close()
 
-    # Add runfiles path to PYTHONPATH.
-    python_path_entries = [runfiles_path]
-
-    if ADD_TOP_DIRECTORIES_TO_PATH:
-      # Add top dirs within runfiles path to PYTHONPATH.
-      top_entries = [os.path.join(runfiles_path, i) for i in os.listdir(runfiles_path)]
-      top_pkg_dirs = [i for i in top_entries if os.path.isdir(i)]
-      python_path_entries += top_pkg_dirs
-
-    new_python_path = ":".join(python_path_entries)
+    new_python_path = runfiles_path
     old_python_path = os.environ.get(PYTHON_PATH)
 
     if old_python_path: