Hide project action buttons behind feature flag

Test removing the buttons from project page, leave them
on Empty repo page, but otherwise these buttons can use
the New File > Template. File list page is for browsing
files

app/assets/stylesheets/page_bundles/project.scss

@@ -128,10 +128,6 @@
     > li {
       display: inline-block;
 
-      &:not(:last-child) {
-        margin-right: $gl-padding;
-      }
-
       &.right {
         vertical-align: top;
         margin-top: 0;
@@ -179,7 +175,6 @@
     }
 
     .btn {
-      margin-bottom: $gl-padding-8;
       padding: $gl-btn-vert-padding $gl-btn-padding;
       line-height: $gl-btn-line-height;
 
@@ -190,12 +185,6 @@
   }
 }
 
-.project-buttons {
-  .nav > li:not(:last-child) {
-    margin-right: $gl-padding-8;
-  }
-}
-
 .git-empty {
   margin-bottom: 7px;
 

app/views/projects/_files.html.haml

@@ -16,7 +16,7 @@
     #js-code-owners
 
   - if is_project_overview
-    .project-buttons.gl-mb-3.js-show-on-project-root
+    .project-buttons.gl-mb-5.js-show-on-project-root
       = render 'stat_anchor_list', anchors: @project.statistics_buttons(show_auto_devops_callout: show_auto_devops_callout), project_buttons: true
 
   #js-tree-list{ data: vue_file_list_data(project, ref) }

app/views/projects/_stat_anchor_list.html.haml

@@ -2,7 +2,7 @@
 - project_buttons = local_assigns.fetch(:project_buttons, false)
 
 - return unless anchors.any?
-%ul.nav
+%ul.nav.gl-gap-3
   - anchors.each do |anchor|
     %li.nav-item
       = link_to_if(anchor.link, anchor.label, anchor.link, stat_anchor_attrs(anchor)) do