[Mac] Remove extra URL in AppleScript Javascript Injection Error

Bug: 852521
Change-Id: Ief55e563304cb2ea8677ef7914e1eb065ea1261a
Reviewed-on: https://chromium-review.googlesource.com/1099733Reviewed-by: Elly Fong-Jones <ellyjones@chromium.org>
Commit-Queue: Sarah Chan <spqchan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#567317}

chrome/browser/ui/cocoa/applescript/error_applescript.mm

@@ -8,11 +8,6 @@
 #include "chrome/grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 
-namespace {
-NSString* kJavaScriptUnsupportedUrlString =
-    @"\n\nhttps://support.google.com/chrome/?p=applescript";
-}
-
 void AppleScript::SetError(AppleScript::ErrorCode errorCode) {
   using l10n_util::GetNSString;
   NSScriptCommand* current_command = [NSScriptCommand currentCommand];
@@ -57,8 +52,6 @@ void AppleScript::SetError(AppleScript::ErrorCode errorCode) {
     case errJavaScriptUnsupported:
       error_string =
           GetNSString(IDS_JAVASCRIPT_UNSUPPORTED_ERROR_APPLESCRIPT_MAC);
-      error_string = [error_string
-          stringByAppendingString:kJavaScriptUnsupportedUrlString];
       break;
     default:
       NOTREACHED();