Remove top button row from feature flag empty state

app/views/projects/feature_flags/_configure_feature_flags_button.html.haml

+%button.btn.btn-primary.btn-inverted.append-right-8{ type: 'button', data: { toggle: 'modal', target: '#configure-feature-flags-modal' } }>
+  = s_('FeatureFlags|Configure')

app/views/projects/feature_flags/_empty_state.html.haml

@@ -7,5 +7,8 @@
         = s_('FeatureFlags|Feature flags allow you to configure your code into different flavors by dynamically toggling certain functionality.')
         = link_to 'More information', '#'
 
-      .text-center
+      .text-center.append-bottom-8
         = render 'new_feature_flag_button'
+
+      .text-center
+        = render 'configure_feature_flags_button'

app/views/projects/feature_flags/_new_feature_flag_button.html.haml

 - if can?(current_user, :create_feature_flags, @project)
-  = link_to new_project_feature_flag_path(@project), class: 'btn btn-new' do
+  = link_to new_project_feature_flag_path(@project), class: 'btn btn-success' do
     = s_('FeatureFlags|New Feature Flag')

app/views/projects/feature_flags/index.html.haml

-- page_title 'Feature Flags'
-
-%h3.page-title.with-button
-  Feature Flags
-
-  .pull-right
-    %button.btn.btn-primary.btn-inverted.append-right-8{ type: 'button', data: { toggle: 'modal', target: '#configure-feature-flags-modal' } }>
-      = s_('FeatureFlags|Configure')
-
-    = render 'new_feature_flag_button'
+- page_title _('Feature Flags')
 
 = render 'configure_feature_flags_modal'
 
 - if @feature_flags.empty?
   = render 'empty_state'
 - else
+  %h3.page-title.with-button
+    = _('Feature Flags')
+
+    .pull-right
+      = render 'configure_feature_flags_button'
+      = render 'new_feature_flag_button'
+
   = render 'table'