diff --git a/contrib/epee/include/syncobj.h b/contrib/epee/include/syncobj.h
index 933514110..dba02f270 100644
--- a/contrib/epee/include/syncobj.h
+++ b/contrib/epee/include/syncobj.h
@@ -150,9 +150,6 @@ namespace epee
   };
 
 
-#define  SHARED_CRITICAL_REGION_BEGIN(x) { shared_guard   critical_region_var(x)
-#define  EXCLUSIVE_CRITICAL_REGION_BEGIN(x) { exclusive_guard   critical_region_var(x)
-
 #define  CRITICAL_REGION_LOCAL(x) {boost::this_thread::sleep_for(boost::chrono::milliseconds(epee::debug::g_test_dbg_lock_sleep()));}   epee::critical_region_t<decltype(x)>   critical_region_var(x)
 #define  CRITICAL_REGION_BEGIN(x) { boost::this_thread::sleep_for(boost::chrono::milliseconds(epee::debug::g_test_dbg_lock_sleep())); epee::critical_region_t<decltype(x)>   critical_region_var(x)
 #define  CRITICAL_REGION_LOCAL1(x) {boost::this_thread::sleep_for(boost::chrono::milliseconds(epee::debug::g_test_dbg_lock_sleep()));} epee::critical_region_t<decltype(x)>   critical_region_var1(x)