remove obsolete field

app/views/medical_releases/review.html.erb

@@ -4,7 +4,6 @@
     <embed class="embeded-contract-preview" type="application/pdf" src="<%= url_for [@medical_release, :contracts, format: "pdf"] %>" width="90%" height="1200" />
 
     <%= bootstrap_form_with model: @medical_release, method: :patch, url: [:approve, @medical_release], local: true do |form| %>
-      <% form.hidden_field :approved, value: true %>
       <div class="row align-items-center text-center mt-4">
         <%= link_to t("shared.cancel"), [@medical_release.project, :medical_releases], class: "col-3 text-reset" %>
         <div class="col-9">