delete css, because it will be generated by travis

assets/css/ie9.css

@@ -1,23 +0,0 @@
-/*
-Landed by HTML5 UP
-html5up.net | @ajlkn
-Free for personal and commercial use under the CCA 3.0 license (html5up.net/license)
-*/
-/* Loader */
-body.landing::before, body.landing::after {
-  display: none !important; }
-
-/* Icon */
-.icon.alt {
-  color: inherit !important; }
-
-.icon.major.alt::before {
-  color: #ffffff !important; }
-
-/* Banner */
-#banner::after {
-  background-color: rgba(23, 24, 32, 0.95); }
-
-/* Footer */
-#footer .icons .icon.alt::before {
-  color: #ffffff !important; }

assets/css/ie9.min.css

@@ -1 +0,0 @@
-body.landing::before,body.landing::after{display:none !important}.icon.alt{color:inherit !important}.icon.major.alt::before{color:#fff !important}#banner::after{background-color:rgba(23, 24, 32, 0.95)}#footer .icons .icon.alt::before{color:#fff !important}