Remove leftover comm.rs in std

(The actual comm module lives in core.)

Author: marijnh

src/libcore/comm.rs

@@ -15,8 +15,6 @@ shared boxes (@T) may not be transmitted across channels.
 
 Example:
 
-> import std::{task, comm, io};
->
 > let p = comm::port();
 > task::spawn(comm::chan(p), fn (c: chan<str>) {
 >   comm::send(c, "Hello, World");

src/libstd/comm.rs

@@ -7,7 +7,7 @@
 #[license = "MIT"];
 #[crate_type = "lib"];
 
-export comm, fs, io, net, run, uv;
+export fs, io, net, run, uv;
 export c_vec, four, tri, util;
 export bitv, deque, fun_treemap, list, map, smallintmap, sort, treemap, ufind;
 export rope;
@@ -19,7 +19,6 @@ export generic_os, os, os_fs;
 
 // General io and system-services modules
 
-mod comm;
 mod fs;
 mod io;
 mod net;

src/libstd/std.rc

@@ -1,8 +1,7 @@
 use std;
 
-import std::comm;
-import std::comm::chan;
-import std::comm::send;
+import comm::chan;
+import comm::send;
 
 fn main() { test05(); }
 

src/test/run-pass/sendfn-deep-copy.rs

@@ -1,8 +1,7 @@
 use std;
 
-import std::comm;
-import std::comm::chan;
-import std::comm::send;
+import comm::chan;
+import comm::send;
 
 fn main() { test05(); }
 

src/test/run-pass/sendfn-generic-fn.rs

@@ -1,8 +1,7 @@
 use std;
 
-import std::comm;
-import std::comm::chan;
-import std::comm::send;
+import comm::chan;
+import comm::send;
 
 fn main() { test05(); }