diff --git a/src/todo/mman/lib.rs b/src/todo/mman/lib.rs
deleted file mode 100644
index 4d6f76a369..0000000000
--- a/src/todo/mman/lib.rs
+++ /dev/null
@@ -1,60 +0,0 @@
-#[no_mangle]
-pub extern "C" fn mlock(addr: *const libc::c_void, len: usize) -> libc::c_int {
-    unimplemented!();
-}
-
-#[no_mangle]
-pub extern "C" fn mlockall(flags: libc::c_int) -> libc::c_int {
-    unimplemented!();
-}
-
-#[no_mangle]
-pub extern "C" fn mmap(
-    addr: *mut libc::c_void,
-    len: usize,
-    prot: libc::c_int,
-    flags: libc::c_int,
-    fildes: libc::c_int,
-    off: off_t,
-) -> *mut libc::c_void {
-    unimplemented!();
-}
-
-#[no_mangle]
-pub extern "C" fn mprotect(addr: *mut libc::c_void, len: usize, prot: libc::c_int) -> libc::c_int {
-    unimplemented!();
-}
-
-#[no_mangle]
-pub extern "C" fn msync(addr: *mut libc::c_void, len: usize, flags: libc::c_int) -> libc::c_int {
-    unimplemented!();
-}
-
-#[no_mangle]
-pub extern "C" fn munlock(addr: *const libc::c_void, len: usize) -> libc::c_int {
-    unimplemented!();
-}
-
-#[no_mangle]
-pub extern "C" fn munlockall() -> libc::c_int {
-    unimplemented!();
-}
-
-#[no_mangle]
-pub extern "C" fn munmap(addr: *mut libc::c_void, len: usize) -> libc::c_int {
-    unimplemented!();
-}
-
-#[no_mangle]
-pub extern "C" fn shm_open(
-    name: *const libc::c_char,
-    oflag: libc::c_int,
-    mode: mode_t,
-) -> libc::c_int {
-    unimplemented!();
-}
-
-#[no_mangle]
-pub extern "C" fn shm_unlink(name: *const libc::c_char) -> libc::c_int {
-    unimplemented!();
-}