[fenix] For https://github.com/mozilla-mobile/fenix/issues/6558 - remove baidu and yahoo from monitored pages

These two do not contain ad servers, so we don't need to unnecessarily monitor them

app/src/main/assets/extensions/ads/manifest.json

@@ -7,9 +7,6 @@
       "matches": ["https://*/*"],
       "include_globs": [
         "https://www.google.*/search*",
-        "https://www.baidu.com/s*",
-        "https://www.baidu.com/baidu*",
-        "https://*search.yahoo.com/search*",
         "https://www.bing.com/search*",
         "https://duckduckgo.com/*"
       ],