Based on: mozilla/addons#819.
We do not have any "install data" for search tools so we always show add-ons with '0 users' on search results page(https://addons.mozilla.org/en-US/firefox/search-tools/). Let's hide this message for search tools as it conveys a negative impact for no reason.

@willdurand can I take this up?
@willdurand can I take this up?
@twisted-sres sure!
@willdurand, we've just assigned you as a mentor to this bug. :)
@willdurand Is anybody working on this issue? If not, I would love to work on this one.
Hey @neilchauhan2 , I am working on this
Thanks @twisted-sres
@willdurand @twisted-sres
The number of users for search tools is no longer displayed on AMO dev - FF65 (win10).

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Thanks @twisted-sres