kill HAVE_FORKEXEC

Bug: 18317407
Change-Id: I4eecb3c9d745e3dabfc46fa595aac7f94f6d93e3
diff --git a/adb/commandline.c b/adb/commandline.c
index 05b4ef6..eea882d 100644
--- a/adb/commandline.c
+++ b/adb/commandline.c
@@ -729,7 +729,7 @@
  */
 int ppp(int argc, char **argv)
 {
-#ifdef HAVE_WIN32_PROC
+#if defined(_WIN32)
     fprintf(stderr, "error: adb %s not implemented on Win32\n", argv[0]);
     return -1;
 #else
@@ -792,7 +792,7 @@
         adb_close(fd);
         return 0;
     }
-#endif /* !HAVE_WIN32_PROC */
+#endif /* !defined(_WIN32) */
 }
 
 static int send_shellcommand(transport_type transport, char* serial, char* buf)