unused variables

* io.c (pipe_open): argc and argv are not used on win32.

* process.c (rb_spawn_process): remove already useless variables.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35904 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

io.c

@@ -5494,8 +5494,10 @@ pipe_open(struct rb_exec_arg *eargp, VALUE prog, const char *modestr, int fmode,
     int write_fd = -1;
 #if !defined(HAVE_FORK)
     const char *cmd = 0;
+#if !defined(_WIN32)
     int argc;
     VALUE *argv;
+#endif
 
     if (prog)
         cmd = StringValueCStr(prog);

process.c

@@ -3131,8 +3131,6 @@ rb_spawn_process(struct rb_exec_arg *earg, VALUE prog, char *errmsg, size_t errm
 #endif
 #if !defined HAVE_FORK || USE_SPAWNV
     struct rb_exec_arg sarg;
-    int argc;
-    VALUE *argv;
 #endif
 
 #if defined HAVE_FORK && !USE_SPAWNV