Get rid of sample binary

Cargo.toml

@@ -11,8 +11,5 @@ license = "MIT OR Apache-2.0"
 repository = "https://github.com/notriddle/rust-unified-diff"
 exclude = [ "fuzz" ]
 
-[[bin]]
-name = "unified-diff"
-
 [dependencies]
 diff = "0.1.10"

src/main.rs

@@ -1,55 +0,0 @@
-// Sample program. Do not use.
-use std::env;
-use std::fs;
-use std::io::{self, Write};
-use std::process;
-fn main() {
-    let mut o = env::args_os();
-    // parse CLI
-    let exe = match o.next() {
-        Some(from) => from,
-        None => {
-            eprintln!("Usage: [exe] [from] [to]");
-            process::exit(1);
-        }
-    };
-    let from = match o.next() {
-        Some(from) => from,
-        None => {
-            eprintln!("Usage: {} [from] [to]", exe.to_string_lossy());
-            process::exit(1);
-        }
-    };
-    let to = match o.next() {
-        Some(from) => from,
-        None => {
-            eprintln!("Usage: {} [from] [to]", exe.to_string_lossy());
-            process::exit(1);
-        }
-    };
-    // read files
-    let from_content = match fs::read(&from) {
-        Ok(from_content) => from_content,
-        Err(e) => {
-            eprintln!("Failed to read from-file: {}", e);
-            process::exit(2);
-        }
-    };
-    let to_content = match fs::read(&to) {
-        Ok(to_content) => to_content,
-        Err(e) => {
-            eprintln!("Failed to read to-file: {}", e);
-            process::exit(2);
-        }
-    };
-    // run diff
-    io::stdout()
-        .write_all(&unified_diff::diff(
-            &from_content,
-            &from.to_string_lossy(),
-            &to_content,
-            &to.to_string_lossy(),
-            1,
-        ))
-        .unwrap();
-}