Fixed https://bugs.llvm.org/show_bug.cgi?id=41584.

Removed unconditional and unsafe decrement of counter 
of active threads in pool at shutdown time.

Differential Revision: https://reviews.llvm.org/D61944

llvm-svn: 360784
diff --git a/openmp/runtime/src/kmp_runtime.cpp b/openmp/runtime/src/kmp_runtime.cpp
index 3b636db..fcf8803 100644
--- a/openmp/runtime/src/kmp_runtime.cpp
+++ b/openmp/runtime/src/kmp_runtime.cpp
@@ -6139,8 +6139,6 @@
       KMP_DEBUG_ASSERT(thread->th.th_reap_state == KMP_SAFE_TO_REAP);
       thread->th.th_next_pool = NULL;
       thread->th.th_in_pool = FALSE;
-      thread->th.th_active_in_pool = FALSE;
-      KMP_ATOMIC_DEC(&__kmp_thread_pool_active_nth);
       __kmp_reap_thread(thread, 0);
     }
     __kmp_thread_pool_insert_pt = NULL;