Revert "Print copy patterns correctly"

This reverts commit ea6819637382e7f8979766b954dd2a1922d0dee0.

Author: catamorphism

src/libsyntax/print/pprust.rs

@@ -1554,10 +1554,8 @@ fn print_pat(s: ps, &&pat: @ast::pat) {
           ast::bind_by_move => {
             word_nbsp(s, ~"move");
           }
-          ast::bind_by_implicit_ref => {}
-          ast::bind_by_value => {
-              word_nbsp(s, ~"copy");
-          }
+          ast::bind_by_implicit_ref |
+          ast::bind_by_value => {}
         }
         print_path(s, path, true);
         match sub {