Remove termtype option

src/nvim/option.c

@@ -313,9 +313,6 @@ static char *(p_scl_values[]) =       { "yes", "no", "auto", "auto:1", "auto:2",
   "auto:3", "auto:4", "auto:5", "auto:6", "auto:7", "auto:8", "auto:9",
   "yes:1", "yes:2", "yes:3", "yes:4", "yes:5", "yes:6", "yes:7", "yes:8",
   "yes:9", NULL };
-#ifdef WIN32
-static char *(p_tmt_values[]) =       { "conpty", "winpty", "", NULL };
-#endif
 
 /// All possible flags for 'shm'.
 static char_u SHM_ALL[] = {
@@ -3288,13 +3285,6 @@ ambw_end:
     if (!parse_winhl_opt(curwin)) {
       errmsg = e_invarg;
     }
-#ifdef WIN32
-  } else if (varp == &p_tmt) {
-    if (check_opt_strings(*varp, p_tmt_values, false) != OK
-        || (!os_has_conpty_working() && STRCMP(*varp, "conpty") == 0)) {
-      errmsg = e_invarg;
-    }
-#endif
   } else {
     // Options that are a list of flags.
     p = NULL;

src/nvim/option_defs.h

@@ -654,7 +654,6 @@ EXTERN char_u *p_titleold;      ///< 'titleold'
 EXTERN char_u *p_titlestring;   ///< 'titlestring'
 EXTERN char_u *p_tsr;           ///< 'thesaurus'
 EXTERN int p_tgc;               ///< 'termguicolors'
-EXTERN char_u *p_tmt;           ///< 'termtype'
 EXTERN int p_ttimeout;          ///< 'ttimeout'
 EXTERN long p_ttm;              ///< 'ttimeoutlen'
 EXTERN char_u *p_udir;          ///< 'undodir'

src/nvim/options.lua

@@ -2496,13 +2496,6 @@ return {
       varname='p_tgc',
       defaults={if_true={vi=false}}
     },
-    {
-      full_name='termtype', abbreviation='tmt',
-      type='string', scope={'global'},
-      vi_def=false,
-      varname='p_tmt',
-      defaults={if_true={vi="",vim=""}}
-    },
     {
       full_name='terse',
       type='bool', scope={'global'},

src/nvim/os/pty_process_win.c

@@ -56,8 +56,7 @@ int pty_process_spawn(PtyProcess *ptyproc)
 
   assert(proc->err.closed);
 
-  int pty_type = *p_tmt;
-  if (pty_type != 'w' && os_has_conpty_working()) {
+  if (os_has_conpty_working()) {
     if ((conpty_object =
          os_conpty_init(&in_name, &out_name,
                         ptyproc->width, ptyproc->height)) != NULL) {