Turn off redex_thread_pool::ThreadPool

Summary:
I am wondering if there is any involvement between the newly activated thread pool in redex-stable and the sporadic failures we have been seeing: https://fburl.com/scuba/android_redex_failures/k9d8kiqi

Note that going back a month, we even see a similar failure in redex-staging so I do suspect something that was activated in our promo.

Reviewed By: beicy

Differential Revision: D54707997

fbshipit-source-id: bc8b471fe3c46e89b211ecef30b961ee23435f47

tools/redex-all/main.cpp

@@ -1742,8 +1742,6 @@ int main(int argc, char* argv[]) {
   auto maybe_global_profile =
       ScopedCommandProfiling::maybe_from_env("GLOBAL_", "global");
 
-  redex_thread_pool::ThreadPool::create();
-
   ConcurrentContainerConcurrentDestructionScope
       concurrent_container_destruction_scope;