diff --git a/assets/js/html5shiv-3.7.3.min.js b/assets/js/html5shiv-3.7.3.min.js
deleted file mode 100644
index 279c47791c..0000000000
--- a/assets/js/html5shiv-3.7.3.min.js
+++ /dev/null
@@ -1,123 +0,0 @@
-/**
- * @preserve HTML5 Shiv 3.7.3 | @afarkas @jdalton @jon_neal @rem | MIT/GPL2 Licensed
- */
-!(function (a, b) {
-  function c(a, b) {
-    var c = a.createElement('p'),
-      d = a.getElementsByTagName('head')[0] || a.documentElement
-    return (c.innerHTML = 'x<style>' + b + '</style>'), d.insertBefore(c.lastChild, d.firstChild)
-  }
-  function d() {
-    var a = t.elements
-    return 'string' == typeof a ? a.split(' ') : a
-  }
-  function e(a, b) {
-    var c = t.elements
-    'string' != typeof c && (c = c.join(' ')),
-      'string' != typeof a && (a = a.join(' ')),
-      (t.elements = c + ' ' + a),
-      j(b)
-  }
-  function f(a) {
-    var b = s[a[q]]
-    return b || ((b = {}), r++, (a[q] = r), (s[r] = b)), b
-  }
-  function g(a, c, d) {
-    if ((c || (c = b), l)) return c.createElement(a)
-    d || (d = f(c))
-    var e
-    return (
-      (e = d.cache[a]
-        ? d.cache[a].cloneNode()
-        : p.test(a)
-        ? (d.cache[a] = d.createElem(a)).cloneNode()
-        : d.createElem(a)),
-      !e.canHaveChildren || o.test(a) || e.tagUrn ? e : d.frag.appendChild(e)
-    )
-  }
-  function h(a, c) {
-    if ((a || (a = b), l)) return a.createDocumentFragment()
-    c = c || f(a)
-    for (var e = c.frag.cloneNode(), g = 0, h = d(), i = h.length; i > g; g++) e.createElement(h[g])
-    return e
-  }
-  function i(a, b) {
-    b.cache ||
-      ((b.cache = {}),
-      (b.createElem = a.createElement),
-      (b.createFrag = a.createDocumentFragment),
-      (b.frag = b.createFrag())),
-      (a.createElement = function (c) {
-        return t.shivMethods ? g(c, a, b) : b.createElem(c)
-      }),
-      (a.createDocumentFragment = Function(
-        'h,f',
-        'return function(){var n=f.cloneNode(),c=n.createElement;h.shivMethods&&(' +
-          d()
-            .join()
-            .replace(/[\w\-:]+/g, function (a) {
-              return b.createElem(a), b.frag.createElement(a), 'c("' + a + '")'
-            }) +
-          ');return n}'
-      )(t, b.frag))
-  }
-  function j(a) {
-    a || (a = b)
-    var d = f(a)
-    return (
-      !t.shivCSS ||
-        k ||
-        d.hasCSS ||
-        (d.hasCSS = !!c(
-          a,
-          'article,aside,dialog,figcaption,figure,footer,header,hgroup,main,nav,section{display:block}mark{background:#FF0;color:#000}template{display:none}'
-        )),
-      l || i(a, d),
-      a
-    )
-  }
-  var k,
-    l,
-    m = '3.7.3',
-    n = a.html5 || {},
-    o = /^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i,
-    p = /^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i,
-    q = '_html5shiv',
-    r = 0,
-    s = {}
-  !(function () {
-    try {
-      var a = b.createElement('a')
-      ;(a.innerHTML = '<xyz></xyz>'),
-        (k = 'hidden' in a),
-        (l =
-          1 == a.childNodes.length ||
-          (function () {
-            b.createElement('a')
-            var a = b.createDocumentFragment()
-            return (
-              'undefined' == typeof a.cloneNode ||
-              'undefined' == typeof a.createDocumentFragment ||
-              'undefined' == typeof a.createElement
-            )
-          })())
-    } catch (c) {
-      ;(k = !0), (l = !0)
-    }
-  })()
-  var t = {
-    elements:
-      n.elements ||
-      'abbr article aside audio bdi canvas data datalist details dialog figcaption figure footer header hgroup main mark meter nav output picture progress section summary template time video',
-    version: m,
-    shivCSS: n.shivCSS !== !1,
-    supportsUnknownElements: l,
-    shivMethods: n.shivMethods !== !1,
-    type: 'default',
-    shivDocument: j,
-    createElement: g,
-    createDocumentFragment: h,
-    addElements: e,
-  }
-  ;(a.html5 = t), j(b), 'object' == typeof module && module.exports && (module.exports = t)
-})('undefined' != typeof window ? window : this, document)