Remove unsafe prctl export

Author: DOhlsson

src/sys/prctl.rs

@@ -1,5 +1,8 @@
 //! prctl is a Linux-only API for performing operations on a process or thread.
 //!
+//! Note that careless use of some prctl() operations can confuse the user-space run-time
+//! environment, so these operations should be used with care.
+//!
 //! For more documentation, please read [prctl(2)](https://man7.org/linux/man-pages/man2/prctl.2.html).
 
 use crate::errno::Errno;
@@ -210,20 +213,3 @@ pub fn get_mce_kill() -> Result<PrctlMCEKillPolicy> {
 
     Errno::result(res).map(|res| PrctlMCEKillPolicy::try_from(res).unwrap())
 }
-
-/// Manipulates various aspects of the behaviour of the calling process or thread.
-///
-/// # Safety
-/// Note that careless use of some prctl() operations can confuse the user-space run-time
-/// environment, so these operations should be used with care.
-///
-/// For more information, see [prctl(2)](https://man7.org/linux/man-pages/man2/prctl.2.html).
-pub unsafe fn prctl(
-    option: PrctlOption,
-    arg2: c_ulong,
-    arg3: c_ulong,
-    arg4: c_ulong,
-    arg5: c_ulong,
-) -> Result<c_int> {
-    Errno::result(libc::prctl(option as c_int, arg2, arg3, arg4, arg5))
-}