remove some unused resources (holdovers from HTTPSB)

src/css/common.css

@@ -10,18 +10,6 @@
   font-weight: bold;
   src: local('httpsb'), url(fonts/Roboto_Condensed/RobotoCondensed-Bold.ttf) format('truetype');
 }
-@font-face {
-  font-family: 'httpsb';
-  font-style: italic;
-  font-weight: normal;
-  src: local('httpsb'), url(fonts/Roboto_Condensed/RobotoCondensed-Light.ttf) format('truetype');
-}
-@font-face {
-  font-family: 'httpsb';
-  font-style: italic;
-  font-weight: bold;
-  src: local('httpsb'), url(fonts/Roboto_Condensed/RobotoCondensed-BoldItalic.ttf) format('truetype');
-}
 @font-face {
   font-family: 'httpsb';
   font-style: normal;