rustrt: remove local_heap implementation.

Author: eddyb

src/librustrt/lib.rs

@@ -58,7 +58,6 @@ pub mod c_str;
 pub mod exclusive;
 pub mod local;
 pub mod local_data;
-pub mod local_heap;
 pub mod mutex;
 pub mod rtio;
 pub mod stack;
@@ -105,9 +104,8 @@ pub static DEFAULT_ERROR_CODE: int = 101;
 
 /// One-time runtime initialization.
 ///
-/// Initializes global state, including frobbing
-/// the crate's logging flags, registering GC
-/// metadata, and storing the process arguments.
+/// Initializes global state, including frobbing the crate's logging flags,
+/// and storing the process arguments.
 pub fn init(argc: int, argv: *const *const u8) {
     // FIXME: Derefing these pointers is not safe.
     // Need to propagate the unsafety to `start`.