Smaller thread_extended_info_data_t check code

Use AC_CHECK_TYPES for checking thread_extended_info_data_t in
configure. No need to write a custom test program for it.

This is a follow-up of commit 7720dbd

Author: Explorer09

configure.ac

@@ -186,25 +186,7 @@ AC_CHECK_HEADERS([execinfo.h])
 
 if test "$my_htop_platform" = darwin; then
    AC_CHECK_HEADERS([mach/mach_time.h])
-   AC_CHECK_HEADERS([mach/thread_info.h])
-
-   AC_MSG_CHECKING(for thread_extended_info_data_t)
-   AC_COMPILE_IFELSE([
-      AC_LANG_PROGRAM(
-         [#include <mach/thread_info.h>],
-         [
-            thread_extended_info_data_t teid;
-            (void)teid;
-         ]
-      )],
-      [
-         AC_DEFINE([HAVE_THREAD_EXTENDED_INFO_DATA_T], 1, [Define if thread_extended_info_data_t is available from <mach/thread_info.h>])
-         AC_MSG_RESULT(yes)
-      ],
-      [
-         AC_MSG_RESULT(no)
-      ]
-   )
+   AC_CHECK_TYPES([thread_extended_info_data_t], [], [], [[#include <mach/thread_info.h>]])
 fi
 
 # ----------------------------------------------------------------------