Remove AFMFont.charWidths

Author: blikblum

lib/font/afm.js

@@ -111,11 +111,6 @@ class AFMFont {
     this.kernPairs = {};
 
     this.parse();
-    // todo: remove charWidths since appears to not be used
-    this.charWidths = new Array(256);
-    for (let char = 0; char <= 255; char++) {
-      this.charWidths[char] = this.glyphWidths[characters[char]];
-    }
 
     this.bbox = this.attributes['FontBBox'].split(/\s+/).map((e) => +e);
     this.ascender = +(this.attributes['Ascender'] || 0);