Remove old _wctype module

src/header/_wctype/cbindgen.toml

-sys_includes = []
-include_guard = "_RELIBC_WCTYPE_H"
-language = "C"
-style = "Tag"
-no_includes = true
-cpp_compat = true
-
-[enum]
-prefix_with_name = true

src/header/_wctype/mod.rs

-//! wctype implementation for Redox, following http://pubs.opengroup.org/onlinepubs/7908799/xsh/wctype.h.html
-
-use crate::platform::types::*;
-
-// #[no_mangle]
-pub extern "C" fn iswalnum(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswalpha(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswcntrl(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswdigit(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswgraph(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswlower(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswprint(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswpunct(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswspace(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswupper(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswxdigit(wc: wint_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn iswctype(wc: wint_t, charclass: wctype_t) -> c_int {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn towlower(wc: wint_t) -> wint_t {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn towupper(wc: wint_t) -> wint_t {
-    unimplemented!();
-}
-
-// #[no_mangle]
-pub extern "C" fn wctype(property: *const c_char) -> c_int {
-    unimplemented!();
-}

src/header/mod.rs

@@ -47,7 +47,6 @@ pub mod sys_statvfs;
 pub mod sys_time;
 pub mod sys_timeb;
 //pub mod sys_times;
-pub mod _wctype;
 pub mod arch_aarch64_user;
 pub mod arch_x64_user;
 pub mod sys_procfs;