Remove unused shape test resources

LayoutTests/fast/shapes/resources/multi-segment-polygon.js

-function generatePolygon(width, height, fontSize, points, content, elementId) {
-    var div = createOrInsert(elementId);
-    var polygon = points.map(function(elem, index, array) {
-        return elem.toString() + 'px' + (index < array.length - 1 && index % 2 == 1 ? ',' : '');
-    }).join(' ');
-    polygon = 'polygon(' + polygon + ')';
-    div.style.setProperty('shape-inside', polygon);
-    div.style.setProperty('width', width + 'px');
-    div.style.setProperty('height', height + 'px');
-    div.style.setProperty('font', fontSize + 'px/1 Ahem, sans-serif');
-    div.style.setProperty('color', 'green');
-    div.style.setProperty('word-wrap', 'break-word');
-    div.innerHTML = content;
-}
-
-function simulateWithText(width, height, fontSize, content, elementId) {
-    var div = createOrInsert(elementId);
-    div.style.setProperty('width', width + 'px');
-    div.style.setProperty('height', height + 'px');
-    div.style.setProperty('font', fontSize + 'px/1 Ahem, sans-serif');
-    div.style.setProperty('color', 'green');
-    if (content instanceof Array) {
-        div.style.setProperty('white-space', 'pre');
-        content = content.join('\n');
-    }
-    div.innerHTML = content;
-}
-
-function createOrInsert(elementId) {
-    if (elementId)
-        return document.getElementById(elementId);
-
-    var div = document.createElement('div');
-    if (document.body.childNodes.length)
-        docuemnt.body.insertBefore(div, document.body.childNodes[0]);
-    else
-        document.body.appendChild(div);
-    return div;
-}