[hackers] [sbase] Remove redundant check in kill(1) || sin

[git]

commit 61046dd39b816e500bd5d89abc3cd96fd07bf67e
Author: sin <s...@2f30.org>
Date:   Tue Nov 11 15:40:38 2014 +0000

    Remove redundant check in kill(1)

diff --git a/kill.c b/kill.c
index 7f30fe4..5e9f858 100644
--- a/kill.c
+++ b/kill.c
@@ -51,8 +51,6 @@ main(int argc, char *argv[])
        if (strcmp(argv[0], "--") == 0) {
                argc--;
                argv++;
-               if (argc == 0)
-                       usage();
        } else if (argv[0][0] == '-' && isdigit(argv[0][1])) {
                /* handle XSI extension -signal_number */
                errno = 0;