fix: remove duplicate failing raggedtensor test when you have a GPU on the system (#3461)

* cast to backend to make the test pass when tensorflow uses the gpu

* this is actually a duplicate

Author: ikrommyd

Diff for: tests/test_3210_to_raggedtensor_from_raggedtensor.py

@@ -110,7 +110,6 @@ def test_convert_from_raggedtensor():
     assert (
         result1.content.data == ak.to_backend(np_array1, result1.backend).layout.data
     ).all()
-    assert (result1.offsets.data == [0, 2, 3, 3, 5]).all()
     assert (
         result1.offsets.data
         == ak.to_backend([0, 2, 3, 3, 5], result1.backend).layout.data