[profiling] #define getpid to _getpid on windows and get rid of some …

…macros that are taken care of by hints

git-svn-id: https://svn.parrot.org/parrot/branches/pluggable_runcore@40961 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

src/runcore/cores.c

@@ -260,15 +260,10 @@ next opcode, or examine and manipulate data from the executing program.
 #  include "../jit.h"
 #endif
 
-#if defined(CLOCK_PROCESS_CPUTIME_ID)
-#  define CLOCK_BEST CLOCK_PROCESS_CPUTIME_ID
-#elif defined(CLOCK_PROF)
-#  define CLOCK_BEST CLOCK_PROF
-#else
-#  define CLOCK_BEST CLOCK_REALTIME
+#ifdef WIN32
+#  define getpid _getpid
 #endif
 
-
 /* HEADERIZER HFILE: include/parrot/runcore_api.h */
 
 /* HEADERIZER BEGIN: static */