Remove extra brace from IDS_RELAUNCH_REQUIRED_TITLE_DAYS.

BUG=817450
TBR=jshin@chromium.org

Change-Id: Iddd24e24699f8c94e7a51e56b4beed8867a4dc20
Reviewed-on: https://chromium-review.googlesource.com/947964Reviewed-by: Greg Thompson <grt@chromium.org>
Commit-Queue: Greg Thompson <grt@chromium.org>
Cr-Commit-Position: refs/heads/master@{#540758}

chrome/app/chromium_strings.grd

@@ -1249,7 +1249,7 @@ Please check your email at <ph name="ACCOUNT_EMAIL">$2<ex>jane.doe@example.com</
         </message>
         <message name="IDS_RELAUNCH_REQUIRED_TITLE_DAYS" desc="The title of a dialog that tells users the browser must be relaunched within two or more days.">
           {0, plural,
-           =1 {Relaunch Chromium within a day}}
+           =1 {Relaunch Chromium within a day}
            other {Relaunch Chromium within # days}}
         </message>
         <message name="IDS_RELAUNCH_REQUIRED_TITLE_HOURS" desc="The title of a dialog that tells users the browser must be relaunched within one or more hours.">