Replace fa-remove with SVG close icons

app/views/admin/runners/_runner.html.haml

@@ -76,4 +76,4 @@
             = sprite_icon('play')
       .btn-group
         = link_to [:admin, runner], method: :delete, class: 'btn btn-danger has-tooltip', title: _('Remove'), ref: 'tooltip', aria: { label: _('Remove') }, data: { placement: 'top', container: 'body', confirm: _('Are you sure?') } do
-          = icon('remove')
+          = sprite_icon('close')

app/views/groups/runners/_runner.html.haml

@@ -79,8 +79,8 @@
       - if runner.belongs_to_more_than_one_project?
         .btn-group
           .btn.btn-danger.has-tooltip{ 'aria-label' => 'Remove', 'data-container' => 'body', 'data-original-title' => _('Multi-project Runners cannot be removed'), 'data-placement' => 'top', disabled: 'disabled' }
-            = icon('remove')
+            = sprite_icon('close')
       - else
         .btn-group
           = link_to group_runner_path(@group, runner), method: :delete, class: 'btn btn-danger has-tooltip', title: _('Remove'), ref: 'tooltip', aria: { label: _('Remove') }, data: { placement: 'top', container: 'body', confirm: _('Are you sure?') } do
-            = icon('remove')
+            = sprite_icon('close')

app/views/projects/ci/builds/_build.html.haml

@@ -102,7 +102,7 @@
       - if can?(current_user, :update_build, job)
         - if job.active?
           = link_to cancel_project_job_path(job.project, job, continue: { to: request.fullpath }), method: :post, title: _('Cancel'), class: 'btn btn-build' do
-            = icon('remove', class: 'cred')
+            = sprite_icon('close')
         - elsif job.scheduled?
           .btn-group
             .btn.btn-default{ disabled: true }