Remove site_creation_domain_cost translation for de & es

The number of arguments for this string has been changed in #18315, so
these translations are no longer accurate and causing lint failures.

WordPress/src/main/res/values-de/strings.xml

@@ -79,7 +79,6 @@ Language: de
     <string name="site_creation_domain_tag_sale">Angebot</string>
     <string name="site_creation_domain_tag_recommended">Empfohlen</string>
     <string name="site_creation_domain_tag_best_alternative">Beste Alternative</string>
-    <string name="site_creation_domain_cost">%s/Jahr</string>
     <string name="support_faq_caption">In unseren FAQ findest du Antworten auf häufige Fragen, die du dir vielleicht auch stellst.</string>
     <string name="support_faq_title">Danke für deinen Wechsel zur Jetpack-App!</string>
     <string name="free">Kostenlos</string>

WordPress/src/main/res/values-es/strings.xml

@@ -88,7 +88,6 @@ Language: es
     <string name="free">Gratis</string>
     <string name="help_buttons_screen_title">Ayuda</string>
     <string name="blaze_activity_title">Blaze</string>
-    <string name="site_creation_domain_cost">%s al año</string>
     <string name="support_faq_caption">Con nuestras preguntas frecuentes podrás resolver algunas de tus dudas.</string>
     <string name="gutenberg_native_blocks_menu">Menú de bloques</string>
     <string name="promote_blaze_card_menu_hide_this">Ocultar esto</string>