tc: Remove unused variable 'res'.

Detected by cppcheck.
Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>

tc/m_ipt.c

@@ -396,11 +396,9 @@ static int parse_ipt(struct action_util *a,int *argc_p,
 	char **argv = *argv_p;
 	int argc = 0, iargc = 0;
 	char k[16];
-	int res = -1;
 	int size = 0;
 	int iok = 0, ok = 0;
 	__u32 hook = 0, index = 0;
-	res = 0;
 
 	lib_dir = getenv("IPTABLES_LIB_DIR");
 	if (!lib_dir)

tc/m_xt_old.c

@@ -215,11 +215,9 @@ static int parse_ipt(struct action_util *a,int *argc_p,
 	char **argv = *argv_p;
 	int argc = 0, iargc = 0;
 	char k[16];
-	int res = -1;
 	int size = 0;
 	int iok = 0, ok = 0;
 	__u32 hook = 0, index = 0;
-	res = 0;
 
 	set_lib_dir();