Remove the sign-in menu item on macOS.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index daddafb2482d28cfecbf26802c26aa4e770cf515..47e62465970a59082c7d2cd06c3ca3cfe469768c 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -11920,24 +11920,6 @@ Tell us what happened exactly before you got the profile error message:
           Success!
         </message>
 
-        <!-- Sync app menu item strings -->
-        <if expr="not use_titlecase">
-          <message name="IDS_SYNC_MENU_PRE_SYNCED_LABEL" desc="The text for the sync app menu item before an account is synced.">
-            Sign in to <ph name="SHORT_PRODUCT_NAME">$1<ex>Chrome</ex></ph>...
-          </message>
-          <message name="IDS_SYNC_MENU_SYNCED_LABEL" desc="The text for the sync app menu item when bookmark sync has been enabled">
-            Signed in as <ph name="USER_NAME">$1<ex>pat@example.com</ex></ph>...
-          </message>
-        </if>
-        <if expr="use_titlecase">
-          <message name="IDS_SYNC_MENU_PRE_SYNCED_LABEL" desc="The text for the sync app menu item before an account is synced.">
-            Sign in to <ph name="SHORT_PRODUCT_NAME">$1<ex>Chrome</ex></ph>...
-          </message>
-          <message name="IDS_SYNC_MENU_SYNCED_LABEL" desc="The text for the sync app menu item when bookmark sync has been enabled">
-            Signed in as <ph name="USER_NAME">$1<ex>pat@example.com</ex></ph>...
-          </message>
-        </if>
-
         <!-- Sync promo page chrome://signin -->
         <message name="IDS_SYNC_PROMO_TAB_TITLE" desc="The title of the sync promo tab.">
           Sign in