i18n: translation updates from weblate

Co-authored-by: Feike Donia <feikedonia@proton.me>
Co-authored-by: Hosted Weblate <hosted@weblate.org>
Co-authored-by: lorduskordus <lorduskordus@gmail.com>
Translate-URL: https://hosted.weblate.org/projects/pop-os/cosmic-greeter/cs/
Translation: Pop OS/COSMIC Greeter

i18n/cs/cosmic_greeter.ftl

@@ -14,7 +14,6 @@ restart-timeout =
     Systém se automaticky restartuje za { $seconds } { $seconds ->
         [one] sekundu.
         [few] sekundy.
-        [many] sekund.
        *[other] sekund.
     }
 session = Relace
@@ -24,7 +23,6 @@ shutdown-timeout =
     Systém se automaticky vypne za { $seconds } { $seconds ->
         [one] sekundu.
         [few] sekundy.
-        [many] sekund.
        *[other] sekund.
     }
 suspend = Uspat