libbb: nuke BB_GETOPT_ERROR, always die if there are mutually exclusive options

find_pair                                            164     180     +16
passwd_main                                         1222    1230      +8
display_speed                                         91      96      +5
msh_main                                            1335    1339      +4
qrealloc                                              38      36      -2
refresh                                             1190    1182      -8
cut_main                                             543     532     -11
sendCgi                                             1807    1794     -13
getopt32                                            1063    1045     -18
arith                                               2077    2030     -47
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 4/6 up/down: 33/-99)            Total: -66 bytes
   text    data     bss     dec     hex filename
 781548    1168   11900  794616   c1ff8 busybox_old
 781452    1168   11900  794520   c1f98 busybox_unstripped

1 files changed, 0 insertions, 2 deletions

diff --git a/include/libbb.h b/include/libbb.h
index a8b9b5bcf..b8ec83927 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -588,8 +588,6 @@ void bb_daemonize_or_rexec(int flags, char **argv);
 void bb_sanitize_stdio(void);
 
 
-// TODO: always error out?
-enum { BB_GETOPT_ERROR = 0x80000000 };
 extern const char *opt_complementary;
 #if ENABLE_GETOPT_LONG
 extern const struct option *applet_long_options;