Update confirmation button label to follow terminology guidelines

app/views/projects/pipeline_schedules/_pipeline_schedule.html.haml

@@ -36,5 +36,5 @@
           = link_to edit_pipeline_schedule_path(pipeline_schedule), title: _('Edit'), class: 'btn gl-button btn-default btn-icon' do
             = sprite_icon('pencil')
         - if can?(current_user, :admin_pipeline_schedule, pipeline_schedule)
-          = link_to pipeline_schedule_path(pipeline_schedule), title: _('Delete'), method: :delete, class: 'btn gl-button btn-danger btn-icon', aria: { label: _('Delete') }, data: { confirm: _("Are you sure you want to delete this pipeline schedule?"), confirm_btn_variant: 'danger' } do
+          = link_to pipeline_schedule_path(pipeline_schedule), title: _('Delete'), method: :delete, class: 'btn gl-button btn-danger btn-icon', aria: { label: _('Delete pipeline schedule') }, data: { confirm: _("Are you sure you want to delete this pipeline schedule?"), confirm_btn_variant: 'danger' } do
             = sprite_icon('remove')

locale/gitlab.pot

@@ -11624,6 +11624,9 @@ msgstr ""
 msgid "Delete pipeline"
 msgstr ""
 
+msgid "Delete pipeline schedule"
+msgstr ""
+
 msgid "Delete project"
 msgstr ""