[mod] svgrepo: remove engine

- SVGRepo uses Cloudflare for every session, no matter
if you're opening it in a browser or not

searx/settings.yml

@@ -2548,12 +2548,6 @@ engines:
       results: HTML
       language: de
 
-  - name: svgrepo
-    engine: svgrepo
-    shortcut: svg
-    timeout: 10.0
-    disabled: true
-
   - name: tootfinder
     engine: tootfinder
     shortcut: toot