Redundant code unreachable by Googlebot

Hi there,

There seems to be some CSS remnants from an earlier version of our site that I can’t get rid of, and consequently Webmaster Tools identifies it as “Not Found”. The code in question is the URL: http://lerouxassociates.com/wp-content/uploads/2014/10/check.png, which no longer exists, but I can’t figure out how to remove it. From what I can tell below, it’s suggesting that the URL is the location of our site’s background image? This however, can’t be the case, as there is no image selected when customizing the site’s appearance. Any help would be greatly appreciated

} #masthead { background-color: #ffffff } #main { background-color: #ffffff } #colophon { background-image: url("http://lerouxassociates.com/wp-content/uploads/2014/10/check.png") } #colophon #theme-attribution, #colophon #site-info { color: #AAAAAA } #colophon #theme-attribution a, #colophon #site-info a { color: #DDDDDD } </style><style type="text/css" data-type="vc_shortcodes-custom-css">.vc_custom_1423587578926{padding-top: 20px !important;}</style><noscript><style> .wpb_animate_when_almost_visible { opacity: 1; }</style></noscript>

URL: http://www.savisas.com