Lightbox delete account style fixes

app/locales/taiga/locale-en.json

@@ -859,7 +859,6 @@
         "DELETE_ACCOUNT": {
             "SECTION_NAME": "Delete Taiga Account",
             "CONFIRM": "Are you sure you want to delete your Taiga account?",
-            "SUBTITLE": "We're going to miss you! :-(",
             "NEWSLETTER_LABEL_TEXT": "I don't wanna receive your newsletter anymore",
             "CANCEL": "Back to settings",
             "ACCEPT": "Delete account",

app/partials/user/lightbox/lightbox-delete-account.jade

@@ -3,8 +3,6 @@ a.close(href="", title="{{'close' | translate}}")
         use(xlink:href="#icon-close")
 form
     h2.title(translate="LIGHTBOX.DELETE_ACCOUNT.CONFIRM")
-    p
-        span.subtitle(translate="LIGHTBOX.DELETE_ACCOUNT.SUBTITLE")
 
     p(ng-bind-html="'LIGHTBOX.DELETE_ACCOUNT.BLOCK_PROJECT' | translate")
     div.options

app/styles/modules/common/lightbox.scss

@@ -339,10 +339,6 @@
         line-height: 2rem;
         text-align: center;
     }
-    .subtitle {
-        @extend %large;
-        @extend %title;
-    }
     .newsletter {
         margin: 1rem 0;
         text-align: center;