SWDEV-355540 - Do not reset core affinities

- Do not reset core affinities when spawning new threads

Change-Id: I26a12075a1ff197bc217aafb9ba18ffbb019ef43

rocclr/os/os_posix.cpp

@@ -391,19 +391,6 @@ const void* Os::createOsThread(amd::Thread* thread) {
 
   // We never plan the use join, so free the resources now.
   ::pthread_attr_setdetachstate(&threadAttr, PTHREAD_CREATE_DETACHED);
-  if (!AMD_CPU_AFFINITY) {
-    ClPrint(amd::LOG_INFO, amd::LOG_INIT, "Resetting CPU core affinities");
-    cpu_set_t cpuset;
-    if (processorCount_ > 0) {
-      CPU_ZERO(&cpuset);
-      for (int i = 0; i < processorCount_; i++) {
-        CPU_SET(i, &cpuset);
-      }
-      if (0 != pthread_attr_setaffinity_np(&threadAttr, sizeof(cpu_set_t), &cpuset)) {
-        fatal("pthread_attr_setaffinity_np failed to set affinity");
-      }
-    }
-  }
 
   pthread_t handle = 0;
   if (0 != ::pthread_create(&handle, &threadAttr, (void* (*)(void*)) & Thread::entry, thread)) {