fix: remove duplicate test assertions

Removed conflicting duplicate assertions in test_build_form_request_backwards_compatibility
that were causing test failures.

Author: AaronDDM

tests/utils/test_file_utils.py

@@ -129,10 +129,6 @@ def test_build_form_request_backwards_compatibility(self):
         assert request.fields["file1"][0] == "attachment2.txt"
         assert request.fields["file1"][1] == b"test data 2"
         assert request.fields["file1"][2] == "text/plain"
-        assert len(request.fields["file0"]) == 3
-        assert request.fields["file0"][0] == "attachment.txt"
-        assert request.fields["file0"][1] == b"test data"
-        assert request.fields["file0"][2] == "text/plain"
 
     def test_build_form_request_no_attachments(self):
         request_body = {