filter: remove useless statement.

* filter.c (trie_filter_string): There is no need to convert a
character to string for passing it as a second argument to
string_extend; it takes characters. Also this had beem coded
in a silly way: if chrp is true that implies !stringp.

1 files changed, 0 insertions, 2 deletions

diff --git a/filter.c b/filter.c
index 650400e6..2993f82d 100644
--- a/filter.c
+++ b/filter.c
@@ -289,8 +289,6 @@ static val trie_filter_string(val filter, val str)
     }
 
     if (match) {
-      if (!stringp(subst) && chrp(subst))
-        subst = tostringp(subst);
       string_extend(out, subst);
       i = plus(match, one);
     } else {