Remove incomplete rust wrapper files

examples/rust/binding-example/Cargo.lock

@@ -1,5 +0,0 @@
-# This file is automatically @generated by Cargo.
-# It is not intended for manual editing.
-[[package]]
-name = "binding-example"
-version = "0.1.0"

examples/rust/binding-example/Cargo.toml

@@ -1,10 +0,0 @@
-[package]
-name = "binding-example"
-version = "0.1.0"
-authors = ["Joseph Henry <joseph.henry@zerotier.com>"]
-edition = "2018"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-#rustc-link-search = ["../../../lib/debug/macos-x86_64/"]
-
-[dependencies]

examples/rust/binding-example/build.rs

@@ -1,4 +0,0 @@
-fn main() {
-	println!("cargo:rustc-flags=-l dylib=c++");
-	//println!("cargo:rustc-link-search=.");
-}

examples/rust/binding-example/src/main.rs

@@ -1,10 +0,0 @@
-
-#[link(name = "libzt", kind = "dylib")]
-extern {
-    fn zts_socket(address_family: i32) -> i32;
-}
-
-fn main() {
-    let x = unsafe { zts_socket(100) };
-    println!("zts_socket() = {}", x);
-}

examples/rust/program.c

@@ -1,6 +0,0 @@
-#include <stdio.h>
-
-int zts_socket(int address_family)
-{
-	return -777;
-}

examples/rust/program.h

@@ -1 +0,0 @@
-int zts_socket(int address_family);

examples/rust/program.rs

@@ -1,5 +0,0 @@
-/* automatically generated by rust-bindgen 0.56.0 */
-
-extern "C" {
-    pub fn zts_socket(address_family: ::std::os::raw::c_int) -> ::std::os::raw::c_int;
-}