Revert "[BUG]: Fix regression when adding timeldeta_range to timestamp"
Reverts pandas-dev/pandas#36582
merge on green unrelated failure xref #36467

```
=========================== short test summary info ============================
FAILED pandas/tests/io/test_html.py::TestReadHtml::test_banklist_url_positional_match[bs4]
= 1 failed, 76281 passed, 1021 skipped, 1167 xfailed, 331 warnings in 1651.71s (0:27:31) =
```
