Remove TorButton configs from I2P Browser

The purpose of these settings was to show a green TorButton button in
the toolbar. Since this button is now hidden these settings can be
removed.

Will-fix: #8893

config/chroot_local-includes/usr/local/sbin/i2p-browser

@@ -58,9 +58,9 @@ copy_extra_tbb_prefs () {
     local browser_prefs_dir="${chroot}/home/${browser_user}/.${browser_name}/profile.default/preferences"
     mkdir -p "${browser_prefs_dir}"
     # Selectively copy the TBB prefs we want
-    sed '/\(security\|update\|download\|spell\|noscript\|torbrowser\|torbutton\)/!d' "${tbb_prefs}/0000tails.js" > \
+    sed '/\(security\|update\|download\|spell\|noscript\|torbrowser\)/!d' "${tbb_prefs}/0000tails.js" > \
                     "${browser_prefs_dir}/0000tails.js"
-    sed '/\(capability\|noscript\|torbutton\)/!d' "${tbb_prefs}/extension-overrides.js" > \
+    sed '/\(capability\|noscript\)/!d' "${tbb_prefs}/extension-overrides.js" > \
                     "${browser_prefs_dir}/extension-overrides.js"
     chown -R "${browser_user}:${browser_user}" "${browser_prefs_dir}"
 }

config/chroot_local-includes/usr/share/tails/i2p-browser/prefs.js

 /* Disable proxy settings. We also set the other settings that
    Torbutton requires to be happy, i.e. its icon is green. */
-pref("extensions.torbutton.http_port", 4444);
-pref("extensions.torbutton.http_proxy", "127.0.0.1");
-pref("extensions.torbutton.https_port", 4444);
-pref("extensions.torbutton.https_proxy", "127.0.0.1");
-pref("extensions.torbutton.custom.ftp_port", 4444);
-pref("extensions.torbutton.custom.ftp_proxy", "127.0.0.1");
-pref("extensions.torbutton.custom.http_port", 4444);
-pref("extensions.torbutton.custom.http_proxy", "127.0.0.1");
-pref("extensions.torbutton.custom.https_port", 4444);
-pref("extensions.torbutton.custom.https_proxy", "127.0.0.1");
-pref("extensions.torbutton.ftp_port", 4444);
-pref("extensions.torbutton.ftp_proxy", "127.0.0.1");
-pref("extensions.torbutton.gopher_port", 4444);
-pref("extensions.torbutton.gopher_proxy", "127.0.0.1");
-pref("extensions.torbutton.inserted_button", true);
-pref("extensions.torbutton.settings_method", "custom");
 pref("network.proxy.ftp", "127.0.0.1");
 pref("network.proxy.ftp_port", 4444);
 pref("network.proxy.http", "127.0.0.1");