remove old acs code.

lib/widget.js

@@ -1060,52 +1060,6 @@ Screen.prototype.draw = function(start, end) {
       // Maybe remove !this.tput.unicode check, however,
       // this seems to be the way ncurses does it.
       if (this.tput) {
-        if (this.tput.strings.enter_alt_charset_mode) {
-          //if (!this.tput.brokenACS || !this.tput.unicode) {
-          if (!this.tput.brokenACS) {
-            if (this.tput.acscr[ch]) {
-              if (acs) {
-                ch = this.tput.acscr[ch];
-              } else {
-                ch = this.tput.smacs()
-                  + this.tput.acscr[ch];
-                acs = true;
-              }
-            } else if (acs) {
-              ch = this.tput.rmacs() + ch;
-              acs = false;
-            }
-          }
-        } else {
-          // U8 is not consistently correct. Some terminfo's
-          // terminals that do not declare it may actually
-          // support utf8 (e.g. urxvt), but if the terminal
-          // does not declare support for ACS (and U8), chances
-          // are it does not support UTF8. This is probably
-          // the "safest" way to do this. Should fix things
-          // like sun-color.
-          // if (this.tput.numbers.U8 !== 1 && ch > '~') {
-          // if ((!this.unicode || this.tput.numbers.U8 !== 1) && this.tput.utoa[ch]) {
-          if (this.tput.numbers.U8 !== 1 && this.tput.utoa[ch]) {
-            ch = this.tput.utoa[ch] || '?';
-          }
-        }
-      }
-
-      // Attempt to use ACS for supported characters.
-      // This is not ideal, but it's how ncurses works.
-      // There are a lot of terminals that support ACS
-      // *and UTF8, but do not declare U8. So ACS ends
-      // up being used (slower than utf8). Terminals
-      // that do not support ACS and do not explicitly
-      // support UTF8 get their unicode characters
-      // replaced with really ugly ascii characters.
-      // It is possible there is a terminal out there
-      // somewhere that does not support ACS, but
-      // supports UTF8, but I imagine it's unlikely.
-      // Maybe remove !this.tput.unicode check, however,
-      // this seems to be the way ncurses does it.
-      if (0 && this.tput) {
         if (this.tput.strings.enter_alt_charset_mode && !this.tput.brokenACS) {
           if (this.tput.acscr[ch]) {
             if (acs) {