remove inline placeholder image func

Author: dzoladz

speakers/index.html

@@ -5,40 +5,6 @@
 
 <h1 class="sr-only">Speakers</h1>
 
-<script>
-	{% comment %}
-	    Generates a random placeholder image:
-	     css: css class for <img> element
-		 name: identifier for the speaker that gets hashed
-		 path: the path to the image with a # for the image. # gets replaced
-		 alt: alt text for the image
-		 num: total number of placeholder image options for modulo
-	{% endcomment %}
-	function placeholderImage(css, name, path, alt, num) {
-		const hashCode = function(str) {
-			if (Array.prototype.reduce) {
-				return str.split("").reduce(function(a,b){a=((a<<5)-a)+b.charCodeAt(0);return a&a},0);   
-			} else {
-				var hash = 0, i, chr, len;
-				if (str.length == 0) return hash;
-				for (i = 0, len = str.length; i < len; i++) {
-					chr = str.charCodeAt(i);
-					hash = ((hash << 5) - hash) + chr;
-					hash |= 0; // Convert to 32bit integer
-				}
-				return hash;
-			}
-		};	
-		
-		var output = '<img ';
-		output += 'class="' + css + '" ';
-		output += 'alt="' + alt + '" ';
-		output += 'src="' + path.replace('#', Math.abs(hashCode(name)) % 10) + '" ';
-		output = output.trim() + '>';
-		document.write(output);
-	}
-</script>
-
 {% if site.data.speakers %}
 <section>
     <div class="container">