Fix build error when hyper's server feature isn't enabled

hyper's `server` feature is not always enabled. The `hyper::Error::is_parse_too_large` function isn't included when `server` isn't enabled.

Fortunately, it doesn't matter to us: `Error:is_parse` matches `parse_too_large` errors, so removing this check does not change behavior whatsoever.

Author: GeorgeHahn

core/src/error.rs

@@ -321,7 +321,7 @@ impl From<http::Error> for Error {
 
 impl From<hyper::Error> for Error {
     fn from(err: hyper::Error) -> Self {
-        if err.is_parse() || err.is_parse_too_large() || err.is_parse_status() || err.is_user() {
+        if err.is_parse() || err.is_parse_status() || err.is_user() {
             return Self::new(ErrorKind::Internal, err);
         }