Make os_change_process_uid and os_change_root os-posix.c local

os_change_process_uid() and os_change_root() are now only called
from os-posix.c, so no need to keep win32 stubs for them.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: Juan Quintela <quintela@redhat.com>
Acked-by: Richard Henderson <rth@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

os-posix.c

@@ -169,7 +169,7 @@ void os_parse_cmd_args(int index, const char *optarg)
     return;
 }
 
-void os_change_process_uid(void)
+static void change_process_uid(void)
 {
     if (user_pwd) {
         if (setgid(user_pwd->pw_gid) < 0) {
@@ -187,7 +187,7 @@ void os_change_process_uid(void)
     }
 }
 
-void os_change_root(void)
+static void change_root(void)
 {
     if (chroot_dir) {
         if (chroot(chroot_dir) < 0) {
@@ -276,8 +276,8 @@ void os_setup_post(void)
 	    exit(1);
     }
 
-    os_change_root();
-    os_change_process_uid();
+    change_root();
+    change_process_uid();
 
     if (daemonize) {
         dup2(fd, 0);

qemu-os-posix.h

@@ -31,8 +31,6 @@ static inline void os_host_main_loop_wait(int *timeout)
 }
 
 void os_setup_signal_handling(void);
-void os_change_process_uid(void);
-void os_change_root(void);
 void os_daemonize(void);
 void os_setup_post(void);
 

qemu-os-win32.h

@@ -43,8 +43,6 @@ void qemu_del_wait_object(HANDLE handle, WaitObjectFunc *func, void *opaque);
 void os_host_main_loop_wait(int *timeout);
 
 static inline void os_setup_signal_handling(void) {}
-static inline void os_change_process_uid(void) {}
-static inline void os_change_root(void) {}
 static inline void os_daemonize(void) {}
 static inline void os_setup_post(void) {}