Fixed grammar (#10853)

roles/kubernetes/preinstall/defaults/main.yml

@@ -105,7 +105,7 @@ ntp_driftfile: /var/lib/ntp/ntp.drift
 # Only takes effect when ntp_manage_config is true.
 ntp_tinker_panic: false
 
-# Force sync time immediately after the ntp installed, which is useful in in newly installed system.
+# Force sync time immediately after the ntp installed, which is useful in a newly installed system.
 ntp_force_sync_immediately: false
 
 # Set the timezone for your server.  eg: "Etc/UTC","Etc/GMT-8". If not set, the timezone will not change.