Update translation files

Updated by "Cleanup translation files" hook in Weblate.

Translation: mattermost-languages-shipped/mattermost-server
Translate-URL: https://translate.mattermost.com/projects/mattermost/mattermost-server_master/

i18n/de.json

@@ -10009,9 +10009,5 @@
   {
     "id": "api.templates.license_up_for_renewal_contact_sales",
     "translation": "Vertrieb kontaktieren"
-  },
-  {
-    "id": "debugbar.info.session-count.error",
-    "translation": "Konnte die Anzahl der Sitzungen nicht abrufen."
   }
 ]

i18n/pl.json

@@ -10010,9 +10010,5 @@
   {
     "id": "api.templates.license_up_for_renewal_contact_sales",
     "translation": "Kontakt ze sprzedażą"
-  },
-  {
-    "id": "debugbar.info.session-count.error",
-    "translation": "Nie można policzyć sesji."
   }
 ]