[MD User Menu] Removes the punctuation from the sync error messages.

chrome/app/chromium_strings.grd

Index: chrome/app/chromium_strings.grd
diff --git a/chrome/app/chromium_strings.grd b/chrome/app/chromium_strings.grd
index b59b94892e579ddc60cb51dbc6f2b9ec238bfeb2..3fb99bcc699c12db4c77de3e74772bbc33def12c 100644
--- a/chrome/app/chromium_strings.grd
+++ b/chrome/app/chromium_strings.grd
@@ -1142,7 +1142,7 @@ Please check your email at <ph name="ACCOUNT_EMAIL">$2<ex>jane.doe@example.com</
         Your manager must remove and add you back to Chromium.
       </message>
       <message name="IDS_SYNC_ERROR_USER_MENU_UPGRADE_MESSAGE" desc="Message of the out-of-date Chrome client error in the header of desktop user menu.">
-        Chromium is out of date.
+        Chromium is out of date
       </message>
       <message name="IDS_SYNC_ERROR_USER_MENU_UPGRADE_BUTTON" desc="Button in the header of desktop user menu that prompts the user to update Chrome to fix the out-of-date Chrome client error.">
         Update Chromium