linting forbids using one as key

linting forbids using one as key

diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index 35fba54..f17e65c 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -33,7 +33,6 @@ en:
       post_ui:
         show_all: Show all
         participants:
-          zero: "no one participated."
           one: "%{count} user participated."
           other: "%{count} users participated."
         invite: Invite

GitHub sha: 8a424216