FE: Remove redundant partial views for approvals

ee/app/views/projects/_merge_request_approvals_settings_form.html.haml

 - can_override_approvers = project.can_override_approvers?
 
-= render 'shared/merge_request_approvals_settings/multiple_rules_form', form: form, project: project
+.form-group
+  = form.label :approver_ids, class: 'label-bold' do
+    = _("Add approvers")
+  #js-mr-approvals-settings{ data: { 'project_id': @project.id,
+    'project_path': expose_path(api_v4_projects_path(id: @project.id)),
+    'settings_path': expose_path(api_v4_projects_approval_settings_path(id: @project.id)),
+    'rules_path': expose_path(api_v4_projects_approval_settings_rules_path(id: @project.id)),
+    'allow_multi_rule': @project.multiple_approval_rules_available?.to_s } }
+    .text-center.prepend-top-default
+      = sprite_icon('spinner', size: 24, css_class: 'gl-spinner')
 
 - if project.code_owner_approval_required_available?
   .form-group.require-code-owner-approval

ee/app/views/shared/issuable/_approvals.html.haml

@@ -11,7 +11,13 @@
   = form.label :approver_ids, class: 'col-form-label col-sm-2' do
     Approvers
   .col-sm-10
-    = render 'shared/issuable/approvals_multiple_rule', issuable: issuable, presenter: presenter
+    #js-mr-approvals-input{ data: { 'project_id': @target_project.id,
+      'can_edit': can?(current_user, :update_approvers, issuable).to_s,
+      'allow_multi_rule': @target_project.multiple_approval_rules_available?.to_s,
+      'mr_id': issuable.iid,
+      'mr_settings_path': presenter.api_approval_settings_path,
+      'project_settings_path': presenter.api_project_approval_settings_path } }
+      = sprite_icon('spinner', size: 24, css_class: 'gl-spinner')
     - if can_update_approvers
       - approver_presenter = MergeRequestApproverPresenter.new(issuable, skip_user: current_user)
       .form-text.text-muted.suggested-approvers

ee/app/views/shared/issuable/_approvals_multiple_rule.html.haml

-#js-mr-approvals-input{ data: { 'project_id': @target_project.id,
-  'can_edit': can?(current_user, :update_approvers, issuable).to_s,
-  'allow_multi_rule': @target_project.multiple_approval_rules_available?.to_s,
-  'mr_id': issuable.iid,
-  'mr_settings_path': presenter.api_approval_settings_path,
-  'project_settings_path': presenter.api_project_approval_settings_path } }
-  = sprite_icon('spinner', size: 24, css_class: 'gl-spinner')

ee/app/views/shared/merge_request_approvals_settings/_multiple_rules_form.html.haml

-.form-group
-  = form.label :approver_ids, class: 'label-bold' do
-    = _("Add approvers")
-  #js-mr-approvals-settings{ data: { 'project_id': @project.id,
-    'project_path': expose_path(api_v4_projects_path(id: @project.id)),
-    'settings_path': expose_path(api_v4_projects_approval_settings_path(id: @project.id)),
-    'rules_path': expose_path(api_v4_projects_approval_settings_rules_path(id: @project.id)),
-    'allow_multi_rule': @project.multiple_approval_rules_available?.to_s } }
-    .text-center.prepend-top-default
-      = sprite_icon('spinner', size: 24, css_class: 'gl-spinner')