Add bin/true and bin/false implementations

- Added assembly implementations for `true` and `false` commands.
- Updated Kbuild files to include new binaries.
- Removed unused libraries and headers.
- Cleaned up makefile and unused code.

2 files changed, 2 insertions, 1 deletions

diff --git a/lib/libc/devctl/Kbuild b/lib/libc/devctl/Kbuild
new file mode 100644
index 00000000..922f854e
--- /dev/null
+++ b/lib/libc/devctl/Kbuild
@@ -0,0 +1 @@
+obj-y += posix_devctl.o
diff --git a/lib/libc/devctl/posix_devctl.c b/lib/libc/devctl/posix_devctl.c
index bc8e7331..b7c24d79 100644
--- a/lib/libc/devctl/posix_devctl.c
+++ b/lib/libc/devctl/posix_devctl.c
@@ -4,7 +4,7 @@
 #include <syscall.h>
 
 int posix_devctl(int fildes, int dcmd, void *restrict dev_data_ptr,
-		 size_t unused nbyte, int *restrict dev_info_ptr)
+		 size_t __unused nbyte, int *restrict dev_info_ptr)
 {
 	long r;