utf8.c: Remove an unnecessary conditional

The unconditional array lookup is clearer, and I suspect faster than
testing for a special case.

diff --git a/utf8.c b/utf8.c
index 6600023..13fb689 100644 (file)
--- a/utf8.c
+++ b/utf8.c
@@ -1096,10 +1096,7 @@ Perl_utf8_length(pTHX_ const U8 *s, const U8 *e)
     if (e < s)
        goto warn_and_return;
     while (s < e) {
-       if (!UTF8_IS_INVARIANT(*s))
-           s += UTF8SKIP(s);
-       else
-           s++;
+        s += UTF8SKIP(s);
        len++;
     }