Kill HAVE_PTHREADS.

Bug: 19083585
Change-Id: Ic09eb3dd250bc5c5b63cac7998f99f5fa007f407
diff --git a/include/log/log.h b/include/log/log.h
index ace12d6..3d86533 100644
--- a/include/log/log.h
+++ b/include/log/log.h
@@ -28,14 +28,12 @@
 #ifndef _LIBS_LOG_LOG_H
 #define _LIBS_LOG_LOG_H
 
-#include <sys/types.h>
-#ifdef HAVE_PTHREADS
-#include <pthread.h>
-#endif
 #include <stdarg.h>
 #include <stdio.h>
+#include <sys/types.h>
 #include <time.h>
 #include <unistd.h>
+
 #include <log/logd.h>
 #include <log/uio.h>