rt: Remove old precise GC code

Author: brson

mk/rt.mk

@@ -71,7 +71,6 @@ RUNTIME_CXXS_$(1)_$(2) := \
               rt/rust_upcall.cpp \
               rt/rust_uv.cpp \
               rt/rust_crate_map.cpp \
-              rt/rust_gc_metadata.cpp \
               rt/rust_util.cpp \
               rt/rust_log.cpp \
               rt/isaac/randport.cpp \

src/libstd/rt/mod.rs

@@ -224,10 +224,7 @@ pub fn init(argc: int, argv: **u8, crate_map: *u8) {
         args::init(argc, argv);
         env::init();
         logging::init(crate_map);
-        rust_update_gc_metadata(crate_map);
     }
-
-    externfn!(fn rust_update_gc_metadata(crate_map: *u8));
 }
 
 /// One-time runtime cleanup.

src/rt/rust_gc_metadata.cpp

@@ -130,8 +130,6 @@ rust_lock_little_lock
 rust_unlock_little_lock
 tdefl_compress_mem_to_heap
 tinfl_decompress_mem_to_heap
-rust_gc_metadata
-rust_update_gc_metadata
 rust_uv_ip4_port
 rust_uv_ip6_port
 rust_uv_tcp_getpeername