remove unused searx engine file

shared/nlabsearch.py

@@ -1,32 +0,0 @@
-from bs4 import BeautifulSoup
-
-baseurl = "https://ncatlab.org"
-
-about = {
-    "website": baseurl + "/nlab/show/HomePage",
-    "use_official_api": False,
-    "require_api_key": False,
-    "results": "html"
-}
-
-# basic search
-def request(query, params):
-    params["url"] = baseurl + f"/nlab/search?query={query}"
-    return params
-
-def response(resp):
-
-    res = []
-
-    soup = BeautifulSoup(resp.content)
-
-    for entry in soup.select("#Content ul li a"):
-        url = baseurl + entry["href"]
-        title = entry.string
-        res_dict = {
-            "url": url,
-            "title": title,
-        }
-        res.append(res_dict)
-
-    return res