add missing file

mirrord/cli/src/util.rs

@@ -0,0 +1,9 @@
+/// Removes `HTTP_PROXY` and `https_proxy` from the environment
+pub(crate) fn remove_proxy_env() {
+    for (key, _val) in std::env::vars() {
+        let lower_key = key.to_lowercase();
+        if lower_key == "http_proxy" || lower_key == "https_proxy" {
+            std::env::remove_var(key)
+        }
+    }
+}