Bug 1914995 removing unncessary #include in MicrosoftEntraSSOUtils.mm r=sekim,necko-reviewers,valentin

Differential Revision: https://phabricator.services.mozilla.com/D220294

netwerk/protocol/http/MicrosoftEntraSSOUtils.mm

@@ -16,7 +16,6 @@
 #include "nsHashKeys.h"
 #include "nsThreadUtils.h"
 #include "mozilla/Logging.h"
-#include "mozilla/SyncRunnable.h"
 
 namespace {
 static mozilla::LazyLogModule gMacOSWebAuthnServiceLog("macOSSingleSignOn");