toke.c: Remove redundant checks

This code is redundant, as the whole string has been checked earlier for
valid utf8ness, or we assume that the internal Perl handler, charnames,
is correctly returning valid utf8.

diff --git a/toke.c b/toke.c
index 53888ca..4b2937a 100644 (file)
--- a/toke.c
+++ b/toke.c
@@ -3518,17 +3518,6 @@ S_scan_const(pTHX_ char *start)
                                                    len,
                                                    &char_length,
                                                    UTF8_ALLOW_ANYUV);
-
-                           /* The call to is_utf8_string() above hopefully
-                            * guarantees that there won't be an error.  But
-                            * it's easy here to make sure.  The function just
-                            * above warns and returns 0 if invalid utf8, but
-                            * it can also return 0 if the input is validly a
-                            * NUL. Disambiguate */
-                           if (uv == 0 && NATIVE_TO_ASCII(*str) != '\0') {
-                               uv = UNICODE_REPLACEMENT;
-                           }
-
                            /* Convert first code point to hex, including the
                             * boiler plate before it.  For all these, we
                             * convert to native format so that downstream code
@@ -3555,10 +3544,6 @@ S_scan_const(pTHX_ char *start)
                                                        str_end - str,
                                                        &char_length,
                                                        UTF8_ALLOW_ANYUV);
-                               if (uv == 0 && NATIVE_TO_ASCII(*str) != '\0') {
-                                   uv = UNICODE_REPLACEMENT;
-                               }
-
                                output_length =
                                    my_snprintf(hex_string, sizeof(hex_string),
                                            ".%X",