[enh] py: drop deps (#5407)

The difference between decompression with brotli or gzip in HTML files is
negligible for 3 MB of compiled binary package.

Introduced in eaa694fb7d

Closes https://github.com/searxng/searxng/security/code-scanning/276
Closes https://github.com/searxng/searxng/security/dependabot/37

searx/engines/tineye.py

@@ -73,7 +73,6 @@ def request(query, params):
     params['headers'].update(
         {
             'Connection': 'keep-alive',
-            'Accept-Encoding': 'gzip, defalte, br',
             'Host': 'tineye.com',
             'DNT': '1',
             'TE': 'trailers',