We can't use the MOZ API anymore.
Let's disable it instead of showing a broken
search window. Then we can spend some time on
moving on instead of answering the
-This is not working!- bug reports.

Change-Id: Ice10bde804d1d9a7a13cd4781813fc794b1b0967
Reviewed-on: https://gerrit.libreoffice.org/67917Tested-by: Muhammet Kara <muhammet.kara@collabora.com>
Tested-by: Jenkins
Reviewed-by: Muhammet Kara <muhammet.kara@collabora.com>
(cherry picked from commit 0d28abe0)
Reviewed-on: https://gerrit.libreoffice.org/71106Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>