su: move restricted_shell into su.c (the only user)

function                                             old     new   delta
su_main                                              448     468     +20
buffer_fill_and_print                                179     196     +17
scriptreplay_main                                    205     208      +3
localcmd                                             275     277      +2
hash_find                                            233     234      +1
devmem_main                                          469     463      -6
install_main                                         724     716      -8
setusershell                                          11       -     -11
find_pair                                            187     169     -18
restricted_shell                                      49       -     -49
------------------------------------------------------------------------------
(add/remove: 0/3 grow/shrink: 5/3 up/down: 43/-92)            Total: -49 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/include/libbb.h b/include/libbb.h
index 98080e841..515e995d0 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -1139,7 +1139,6 @@ extern void selinux_preserve_fcontext(int fdesc) FAST_FUNC;
 #define selinux_preserve_fcontext(fdesc) ((void)0)
 #endif
 extern void selinux_or_die(void) FAST_FUNC;
-extern int restricted_shell(const char *shell) FAST_FUNC;
 
 /* setup_environment:
  * if chdir pw->pw_dir: ok: else if to_tmp == 1: goto /tmp else: goto / or die