Merge pull request #68 from dmohns/remove-leftover-sum-function

cleanup: remove leftover `sum` function

Author: emersonbottero

src/mermaid-markdown.ts

@@ -1,58 +1,4 @@
 export const MermaidMarkdown = (md, pluginOptions) => {
-  const sum = (o) => {
-    function pad(hash, len) {
-      while (hash.length < len) {
-        hash = "0" + hash;
-      }
-      return hash;
-    }
-
-    function fold(hash, text) {
-      var i;
-      var chr;
-      var len;
-      if (text.length === 0) {
-        return hash;
-      }
-      for (i = 0, len = text.length; i < len; i++) {
-        chr = text.charCodeAt(i);
-        hash = (hash << 5) - hash + chr;
-        hash |= 0;
-      }
-      return hash < 0 ? hash * -2 : hash;
-    }
-
-    function foldObject(hash, o, seen) {
-      return Object.keys(o).sort().reduce(foldKey, hash);
-      function foldKey(hash, key) {
-        return foldValue(hash, o[key], key, seen);
-      }
-    }
-
-    function foldValue(input, value, key, seen) {
-      var hash = fold(fold(fold(input, key), toString(value)), typeof value);
-      if (value === null) {
-        return fold(hash, "null");
-      }
-      if (value === undefined) {
-        return fold(hash, "undefined");
-      }
-      if (typeof value === "object") {
-        if (seen.indexOf(value) !== -1) {
-          return fold(hash, "[Circular]" + key);
-        }
-        seen.push(value);
-        return foldObject(hash, value, seen);
-      }
-      return fold(hash, value.toString());
-    }
-
-    function toString(o) {
-      return Object.prototype.toString.call(o);
-    }
-    return pad(foldValue(0, o, "", []).toString(16), 8);
-  };
-
   const fence = md.renderer.rules.fence.bind(md.renderer.rules);
 
   md.renderer.rules.fence = (tokens, index, options, env, slf) => {