globals: eliminate "has_mbyte" macro

"has_mbyte" always evaluates to "true".
Continue dead code removal, started in https://github.com/neovim/neovim/pull/13275.

4 files changed, 6 insertions, 13 deletions

diff --git a/src/nvim/globals.h b/src/nvim/globals.h
index 657afeaf4c..7247c7e4d0 100644
--- a/src/nvim/globals.h
+++ b/src/nvim/globals.h
@@ -602,7 +602,6 @@ EXTERN int inhibit_delete_count INIT(= 0);
 // 'encoding' is always "utf-8". Code that use them can be refactored to
 // remove dead code.
 #define enc_utf8 true
-#define has_mbyte true
 
 /// Encoding used when 'fencs' is set to "default"
 EXTERN char_u *fenc_default INIT(= NULL);
diff --git a/src/nvim/main.c b/src/nvim/main.c
index 6ff5216a84..941258fa79 100644
--- a/src/nvim/main.c
+++ b/src/nvim/main.c
@@ -188,9 +188,6 @@ void early_init(mparm_T *paramp)
   global_alist.id = 0;
 
   // Set the default values for the options.
-  // NOTE: Non-latin1 translated messages are working only after this,
-  // because this is where "has_mbyte" will be set, which is used by
-  // msg_outtrans_len_attr().
   // First find out the home directory, needed to expand "~" in options.
   init_homedir();               // find real value of $HOME
   set_init_1(paramp != NULL ? paramp->clean : false);
diff --git a/src/nvim/spell_defs.h b/src/nvim/spell_defs.h
index 05667f060e..e2c9ab7ae8 100644
--- a/src/nvim/spell_defs.h
+++ b/src/nvim/spell_defs.h
@@ -162,7 +162,7 @@ struct slang_S {
   bool sl_collapse;             // SAL collapse_result
   bool sl_rem_accents;          // SAL remove_accents
   bool sl_sofo;                 // SOFOFROM and SOFOTO instead of SAL items:
-                                // "sl_sal_first" maps chars, when has_mbyte
+                                // "sl_sal_first" maps chars
                                 // "sl_sal" is a list of wide char lists.
   garray_T sl_repsal;           // list of fromto_T entries from REPSAL lines
   int16_t sl_repsal_first[256];    // sl_rep_first for REPSAL lines
diff --git a/src/nvim/version.c b/src/nvim/version.c
index 7296c74109..6be2a61c6a 100644
--- a/src/nvim/version.c
+++ b/src/nvim/version.c
@@ -2301,14 +2301,11 @@ static void do_intro_line(long row, char_u *mesg, int attr)
   for (p = mesg; *p != NUL; p += l) {
     clen = 0;
 
-    for (l = 0; p[l] != NUL
-         && (l == 0 || (p[l] != '<' && p[l - 1] != '>')); ++l) {
-      if (has_mbyte) {
-        clen += ptr2cells(p + l);
-        l += (*mb_ptr2len)(p + l) - 1;
-      } else {
-        clen += byte2cells(p[l]);
-      }
+    for (l = 0;
+         p[l] != NUL && (l == 0 || (p[l] != '<' && p[l - 1] != '>'));
+         l++) {
+      clen += ptr2cells(p + l);
+      l += utfc_ptr2len(p + l) - 1;
     }
     assert(row <= INT_MAX && col <= INT_MAX);
     grid_puts_len(&default_grid, p, l, (int)row, (int)col,