Removing locked queue port/chan prototype.

Author: eholk

src/libcore/core.rc

@@ -39,7 +39,7 @@ export float, f32, f64;
 export box, char, str, ptr, vec, bool;
 export either, option, result, iter;
 export libc, os, io, run, rand, sys, unsafe, logging;
-export arc, newcomm, comm, task, future, pipes;
+export arc, comm, task, future, pipes;
 export extfmt;
 export tuple;
 export to_str, to_bytes;
@@ -183,7 +183,6 @@ mod dlist_iter {
 
 // Concurrency
 mod arc;
-mod newcomm;
 mod comm;
 mod task;
 mod future;