[unbload] drop meaningless field ``number_of_results_xpath`` from results (#6130)

In the result-list, the ``number_of_results`` indicate the number of hits in the
Index, they do not indicate how many results are in the answer.

In the past, search engines such as google or ddg had an indication on the first
page of a search term of how many hits there were for this term in total in
their index.

This info was added up in SearXNG and delivered under ``number_of_results``.
Nowadays the search engines no longer indicate how many hits there are in the
index and so this field in SearXNG is also superfluous.

- https://github.com/searxng/searxng/issues/2457#issuecomment-2566181574
- https://github.com/searxng/searxng/issues/2987
- https://github.com/searxng/searxng/issues/5034

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/searx/result_types/_base.py b/searx/result_types/_base.py
index e83be4382..3624d64ec 100644
--- a/searx/result_types/_base.py
+++ b/searx/result_types/_base.py
@@ -529,7 +529,7 @@ class LegacyResult(dict[str, t.Any]):
             # the img_src are equal.
             return hash(f"{self.template}|{self.url}|{self.img_src}")
 
-        if not any(cls in self for cls in ["suggestion", "correction", "infobox", "number_of_results", "engine_data"]):
+        if not any(cls in self for cls in ["suggestion", "correction", "infobox", "engine_data"]):
             # Ordinary url-results are equal if their values for template,
             # parsed_url (without schema) and img_src` are equal.