Revert "seccomp: handle inverted arch"

src/lxc/seccomp.c

@@ -296,20 +296,11 @@ static int parse_config_v2(FILE *f, char *line, struct lxc_conf *conf)
 	if (native_arch == lxc_seccomp_arch_amd64) {
 		cur_rule_arch = lxc_seccomp_arch_all;
 		compat_arch = SCMP_ARCH_X86;
-		// Detect if we are on x86_64 kernel with 32-bit userspace
-		if (seccomp_arch_exist(conf->seccomp_ctx, SCMP_ARCH_X86)) {
-			compat_ctx = conf->seccomp_ctx;
-			conf->seccomp_ctx = get_new_ctx(lxc_seccomp_arch_amd64,
-					default_policy_action);
-			if (!conf->seccomp_ctx)
-				goto bad;
-		} else {
 		compat_ctx = get_new_ctx(lxc_seccomp_arch_i386,
 				default_policy_action);
 		if (!compat_ctx)
 			goto bad;
 	}
-	}
 
 	if (default_policy_action != SCMP_ACT_KILL) {
 		ret = seccomp_reset(conf->seccomp_ctx, default_policy_action);