cfg=erasure fixes, use return value of align!()

src/erasure.rs

@@ -254,7 +254,7 @@ pub fn generate_coding(
         }
 
         // round up to the nearest jerasure alignment
-        align!(max_data_size, JERASURE_ALIGN);
+        max_data_size = align!(max_data_size, JERASURE_ALIGN);
 
         trace!("{:x} max_data_size: {}", debug_id, max_data_size);
 

src/retransmit_stage.rs

@@ -2,8 +2,6 @@
 
 use counter::Counter;
 use crdt::Crdt;
-#[cfg(feature = "erasure")]
-use erasure;
 use log::Level;
 use packet::BlobRecycler;
 use result::{Error, Result};

src/streamer.rs

@@ -1,7 +1,5 @@
 //! The `streamer` module defines a set of services for efficiently pulling data from UDP sockets.
 //!
-#[cfg(feature = "erasure")]
-use erasure;
 use packet::{Blob, BlobRecycler, PacketRecycler, SharedBlobs, SharedPackets};
 use result::{Error, Result};
 use std::net::UdpSocket;