Revert "SWDEV-458943 - make new AMD_MONITOR on"

This reverts commit f8598dabb0.

Change-Id: I2a7ddb2d4340224f43749a2ea91a894a8a95b83b

rocclr/utils/flags.hpp

@@ -257,7 +257,7 @@ release(bool, HIP_ALWAYS_USE_NEW_COMGR_UNBUNDLING_ACTION, false,              \
         "Force to always use new comgr unbundling action")                    \
 release(bool, DEBUG_HIP_KERNARG_COPY_OPT, true,                               \
         "Enable/Disable multiple kern arg copies")                            \
-release(bool, DEBUG_CLR_USE_STDMUTEX_IN_AMD_MONITOR, true,                    \
+release(bool, DEBUG_CLR_USE_STDMUTEX_IN_AMD_MONITOR, false,                   \
         "Use std::mutext in amd::monotor")                                    \
 
 namespace amd {