Remove the estr #fmt. Issue #855

Author: brson

src/comp/rustc.rc

@@ -63,7 +63,6 @@ mod syntax {
         mod base;
         mod expand;
 
-        mod fmt;
         mod ifmt;
         mod env;
         mod simplext;

src/comp/syntax/ext/base.rs

@@ -22,7 +22,6 @@ tag syntax_extension {
 // AST nodes into full ASTs
 fn syntax_expander_table() -> hashmap<istr, syntax_extension> {
     let syntax_expanders = new_str_hash::<syntax_extension>();
-    syntax_expanders.insert(~"fmt", normal(ext::fmt::expand_syntax_ext));
     syntax_expanders.insert(~"ifmt", normal(ext::ifmt::expand_syntax_ext));
     syntax_expanders.insert(~"env", normal(ext::env::expand_syntax_ext));
     syntax_expanders.insert(~"macro",