chore(hl): remove second server key generation

- bad merge led to two server key generations in the HL API, fix that

Author: IceTDrinker

tfhe/src/high_level_api/keys/inner.rs

@@ -353,8 +353,6 @@ impl IntegerCompressedServerKey {
                     build_helper.into()
                 });
 
-        let key = crate::integer::CompressedServerKey::new_radix_compressed_server_key(cks);
-
         let (compression_key, decompression_key) =
             client_key
                 .compression_key