Remove surf example

Doesn't build on mac

Cargo.toml

@@ -38,5 +38,4 @@ slab = "0.4.2"
 
 [dev-dependencies]
 femme = "1.1.0"
-surf = "1.0.1"
 tempdir = "0.3.7"

examples/surf-web.rs

@@ -1,21 +0,0 @@
-//! Creates a HTTP request to the official Rust website.
-
-#![feature(async_await)]
-
-use async_std::task;
-
-fn main() -> Result<(), surf::Exception> {
-    task::block_on(async {
-        let url = "https://www.rust-lang.org";
-        let mut response = surf::get(url).await?;
-        let body = response.body_string().await?;
-
-        dbg!(url);
-        dbg!(response.status());
-        dbg!(response.version());
-        dbg!(response.headers());
-        dbg!(body.len());
-
-        Ok(())
-    })
-}