Removed dropdown JS to align instead favours HTML class

app/assets/javascripts/dropdowns.js.coffee

-$ ->
-  $('[data-toggle="dropdown"]').each ->
-    $dropdown = $(@).parent()
-    $menu = $dropdown.find('.dropdown-menu')
-
-    $dropdown.on 'shown.bs.dropdown', ->
-      dropdownRight = $menu.offset().left + $menu.outerWidth()
-
-      if dropdownRight >= $(window).width()
-        $menu.addClass 'dropdown-menu-align-right'

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

@@ -16,7 +16,7 @@
         - else
           Name
         %b.caret
-      %ul.dropdown-menu
+      %ul.dropdown-menu.dropdown-menu-align-right
         %li
           = link_to namespace_project_branches_path(sort: nil) do
             Name

app/views/projects/tags/_download.html.haml

@@ -6,7 +6,7 @@
     %span.caret
     %span.sr-only
       Select Archive Format
-  %ul.col-xs-10.dropdown-menu{ role: 'menu' }
+  %ul.dropdown-menu.dropdown-menu-align-right{ role: 'menu' }
     %li
       = link_to archive_namespace_project_repository_path(project.namespace, project, ref: ref, format: 'zip'), rel: 'nofollow' do
         %i.fa.fa-download