drop landlock/seccomp and capsicum support

it reached a point where this stuff is not maintenable.  I'd like
to move forward with gmid, but the restriction of capsicum and the
linux environment at large that make landlock unusable (how can you
resolve DNS portably when under landlock?) -and don't get me started
on seccomp- makes it impossible for me to do any work.

So, I prefer removing the crap, resuming working on gmid by cleaning
stuff and consolidating the features, improving various things
etc... and then eventually see how to introduce some sandboxing
again on other systems.  Patches to resume sandboxing are, as always,
welcome!

2 files changed, 0 insertions, 31 deletions

diff --git a/have/Makefile b/have/Makefile
index 3aa1b97..a2384c3 100644
--- a/have/Makefile
+++ b/have/Makefile
@@ -6,7 +6,6 @@ DISTFILES =	Makefile \
 		getdtablesize.c \
 		getprogname.c \
 		imsg.c \
-		landlock.c \
 		libevent.c \
 		libevent2.c \
 		libtls.c \
diff --git a/have/landlock.c b/have/landlock.c
deleted file mode 100644
index 1e788a6..0000000
--- a/have/landlock.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright (c) 2021 Omar Polo <op@omarpolo.com>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "../landlock_shim.h"
-
-int
-main(void)
-{
-	int rfd;
-	const struct landlock_ruleset_attr rsattr = {
-		.handled_access_fs =	LANDLOCK_ACCESS_FS_READ_FILE |
-					LANDLOCK_ACCESS_FS_READ_DIR
-	};
-
-	rfd = landlock_create_ruleset(&rsattr, sizeof(rsattr), 0);
-	return rfd == -1;
-}