sim: ppc: drop obsolete USE_WIN32API check

This controls only one thing: how to call mkdir().  The gnulib code
already has a mkdir module that provides this exact logic for us, so
punt the code entirely.

sim/ppc/config.in

@@ -56,8 +56,3 @@
 
 /* Define to 1 if you have the ANSI C header files. */
 #undef STDC_HEADERS
-
-/* Define if we should use the Windows API, instead of the POSIX API. On
-   Windows, we use the Windows API when building for MinGW, but the POSIX API
-   when building for Cygwin. */
-#undef USE_WIN32API

sim/ppc/configure

@@ -3543,14 +3543,6 @@ else
 fi
 
 
-case ${host} in
-  *mingw32*)
-
-$as_echo "#define USE_WIN32API 1" >>confdefs.h
-
-    ;;
-esac
-
 ac_config_headers="$ac_config_headers config.h:config.in"
 
 

sim/ppc/configure.ac

@@ -381,16 +381,6 @@ if test x"$silent" != x"yes" && test x"$sim_xor_endian" != x""; then
 fi],[sim_xor_endian=""])dnl
 
 
-case ${host} in
-  *mingw32*)
-    AC_DEFINE(USE_WIN32API, 1,
-              [Define if we should use the Windows API, instead of the 
-	       POSIX API.  On Windows, we use the Windows API when 
-	       building for MinGW, but the POSIX API when building 
-	       for Cygwin.])
-    ;;
-esac	    
-
 AC_CONFIG_HEADER(config.h:config.in)
 
 

sim/ppc/emul_unix.c

@@ -760,11 +760,7 @@ do_unix_mkdir(os_emul_data *emul,
   if (WITH_TRACE && ppc_trace[trace_os_emul])
     printf_filtered ("0x%lx [%s], 0%3o", (long)path_addr, path, mode);
 
-#ifdef USE_WIN32API
-  status = mkdir(path);
-#else
   status = mkdir(path, mode);
-#endif
   emul_write_status(processor, status, errno);
 }
 #endif