Do not show Any Namespace option when needed

app/assets/javascripts/namespace_select.js.coffee

@@ -5,12 +5,14 @@ class @NamespaceSelect
     } = opts
     showAny = true
-
     fieldName = 'namespace_id'
-    if @dropdown.data 'fieldName'
+    if @dropdown.attr 'data-field-name'
      fieldName = @dropdown.data 'fieldName'
+    if @dropdown.attr 'data-show-any'
+      showAny = @dropdown.data 'showAny'
+
     @dropdown.glDropdown(
       filterable: true
       selectable: true

app/views/admin/projects/show.html.haml

@@ -100,7 +100,7 @@
             = f.label :new_namespace_id, "Namespace", class: 'control-label'
             .col-sm-10
               .dropdown
-                = dropdown_toggle('Search for Namespace', { toggle: 'dropdown', field_name: 'new_namespace_id' }, { toggle_class: 'js-namespace-select large' })
+                = dropdown_toggle('Search for Namespace', { toggle: 'dropdown', field_name: 'new_namespace_id', show_any: 'false' }, { toggle_class: 'js-namespace-select large' })
                 .dropdown-menu.dropdown-select
                   = dropdown_title('Namespaces')
                   = dropdown_filter("Search for Namespace")