This first patch remove the previous way to search for users to link to
budgets.
Test plan:
1/ Edit or create a fund
2/ Edit the owner of this fund a select a patron
3/ Add 1+ users to the user lists of this fund
Tested together with other patches.
Signed-off-by: Marc Veron <veron@veron.ch>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
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