Break and continue weren't all the way implemented

stdlib/ast.krak

@@ -187,12 +187,6 @@ fun _for(c: ref vec<*tree<ast>>): *tree<ast> {
 fun _return(c: ref vec<*tree<ast>>): *tree<ast> {
     return new<tree<ast>>()->construct(ast::_return(), c)
 }
-fun _break(c: ref vec<*tree<ast>>): *tree<ast> {
-    return new<tree<ast>>()->construct(ast::_break(), c)
-}
-fun _continue(c: ref vec<*tree<ast>>): *tree<ast> {
-    return new<tree<ast>>()->construct(ast::_continue(), c)
-}
 fun _defer(c: ref vec<*tree<ast>>): *tree<ast> {
     return new<tree<ast>>()->construct(ast::_defer(), c)
 }