Fix extra “zero” key in some plural translation strings (#17883)

config/locales/en.yml

@@ -168,7 +168,6 @@ en:
       previous_strikes_description_html:
         one: This account has <strong>one</strong> strike.
         other: This account has <strong>%{count}</strong> strikes.
-        zero: This account is <strong>in good standing</strong>.
       promote: Promote
       protocol: Protocol
       public: Public
@@ -530,7 +529,6 @@ en:
       known_accounts:
         one: "%{count} known account"
         other: "%{count} known accounts"
-        zero: No known account
       moderation:
         all: All
         limited: Limited
@@ -802,7 +800,6 @@ en:
         shared_by_over_week:
           one: Shared by one person over the last week
           other: Shared by %{count} people over the last week
-          zero: Shared by noone over the last week
         title: Trending links
         usage_comparison: Shared %{today} times today, compared to %{yesterday} yesterday
       pending_review: Pending review
@@ -845,7 +842,6 @@ en:
         used_by_over_week:
           one: Used by one person over the last week
           other: Used by %{count} people over the last week
-          zero: Used by noone over the last week
       title: Trends
     warning_presets:
       add_new: Add new