Revert "Fix memory leak of strdup"
This reverts commit 6a178394.
Previous commit will make s_pthread_key_name point to a freed memory due to a bug in pthread library. See details in loguru github issue #59.
This reverts commit 6a178394.
Previous commit will make s_pthread_key_name point to a freed memory due to a bug in pthread library. See details in loguru github issue #59.