Bug 32074: Edit vendor has two save buttons

Bug 32074: Edit vendor has two save buttons

When editing a vendor there is a floating toolbar with options to save
and cancel. There is also an additional save and cancel button set at
the bottom of the page and this is superfluous. This has now been
removed to leave the floating toolbar as the only toolbar.

Test plan:
1) Navigate to Acquisitions and select a Vendor.
2) Click edit vendor
3) Scroll down the page and observe that there is a floating
   save/cancel toolbar as well as the buttons to save/cancel at the
   bottom of the page
4) Apply patch
5) Observe that the duplicate buttons at the bottom of the page are now
   gone

Signed-off-by: Owen <oleonard@myacpl.org>
Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>