Remove Atari MiNT references

runtime/doc/options.txt

@@ -7135,7 +7135,6 @@ A jump table for the options with a short description can be found at |Q_op|.
 					on Amiga: "amiga"
 					 on BeOS: "beos-ansi"
 					  on Mac: "mac-ansi"
-					 on MiNT: "vt52"
 				       on MS-DOS: "pcterm"
 					 on OS/2: "os2ansi"
 					 on Unix: "ansi"

runtime/doc/vi_diff.txt

@@ -137,7 +137,6 @@ Support for different systems.
 	- In protected mode on Windows 3.1 and MS-DOS (DPMI driver required).
 	- Windows 95 and Windows NT, with support for long file names.
 	- OS/2 (needs emx.dll)
-	- Atari MiNT
 	- VMS
 	- BeOS
 	- Macintosh

src/nvim/os_unix.c

@@ -10,7 +10,7 @@
 
 /*
  * os_unix.c -- code for all flavors of Unix (BSD, SYSV, SVR4, POSIX, ...)
- *	     Also for BeOS and Atari MiNT.
+ *	     Also for BeOS
  *
  * A lot of this file was originally written by Juergen Weigert and later
  * changed beyond recognition.
@@ -598,9 +598,8 @@ void mch_settmode(int tmode)
      */
     tnew.c_iflag &= ~ICRNL;
     tnew.c_lflag &= ~(ICANON | ECHO | ISIG | ECHOE
-# if defined(IEXTEN) && !defined(__MINT__)
+# if defined(IEXTEN)
                       | IEXTEN      /* IEXTEN enables typing ^V on SOLARIS */
-                                    /* but it breaks function keys on MINT */
 # endif
                       );
 # ifdef ONLCR       /* don't map NL -> CR NL, we do it ourselves */

src/nvim/term.c

@@ -639,7 +639,7 @@ static struct builtin_term builtin_termcaps[] =
   {K_BS,              "\x7f"},          /* for some reason 0177 doesn't work */
 # endif
 
-# if defined(ALL_BUILTIN_TCAPS) || defined(__MINT__)
+# if defined(ALL_BUILTIN_TCAPS)
   /*
    * Ordinary vt52
    */
@@ -998,7 +998,7 @@ static struct builtin_term builtin_termcaps[] =
 
 
 
-#if defined(UNIX) && !defined(__MINT__)
+#if defined(UNIX)
 # define DEFAULT_TERM   (char_u *)"ansi"
 #endif