Revert server side of dealing with slashes in handles.

This turns out to be a bit more complicated. We will implement this in a
separate PR.

src/cli/client.rs

@@ -837,7 +837,7 @@ impl KrillClient {
 //------------ Path Helpers --------------------------------------------------
 
 fn ca_path(ca: &CaHandle) -> impl IntoIterator<Item = Cow<'_, str>> {
- ["api/v1/cas".into(), ca.as_str().into()]
+ ["api/v1/cas".into(), encode(ca.as_str())]
 }
 
 fn child_path<'s>(

src/daemon/http/mod.rs

@@ -8,7 +8,6 @@ use hyper::body::Body;
 use hyper::header::USER_AGENT;
 use hyper::http::uri::PathAndQuery;
 use hyper::{HeaderMap, Method, StatusCode};
-use percent_encoding::percent_decode_str;
 
 use rpki::ca::{provisioning, publication};
 
@@ -562,10 +561,6 @@ impl RequestPath {
  where
  T: FromStr,
  {
- self.next().and_then(|s| {
- percent_decode_str(s).decode_utf8().ok()
- }).and_then(|s| {
- T::from_str(&s).ok()
- })
+ self.next().and_then(|s| T::from_str(s).ok())
  }
 }