Remove old system for grid system

src/stylesheets/Lungo.layout.article.less

@@ -36,59 +36,6 @@ article {
         line-height: 1.4em;
     }
 
-    & .box {
-        .box-shadow( 0 1px 0 #e0e0e0);
-        &.grey {
-            color: #636363 !important;
-            text-shadow:  0 1px 0 #fff;
-            background: #efefef;
-            line-height: 1.5em;
-
-            & .icon, & a {
-                color: #636363;
-            }
-            & .icon {
-                font-size:  1.25em;
-            }
-        }
-
-        &.quarter {
-            height: 25%;
-        }
-        &.third {
-            height: 33.3%;
-        }
-        &.middle {
-            height: 50%;
-        }
-        &.two-thirds {
-            height: 66.7%;
-        }
-    }
-
-    & .col {
-        float:  left;
-        display: inline-block;
-        height:  100%;
-        font-size:  0.85em;
-
-        &:not(last-child) {
-            .box-shadow(inset 1px 0 0 #e0e0e0);
-        }
-        &.quarter {
-            width: 25%;
-        }
-        &.third {
-            width: 33.3%;
-        }
-        &.middle {
-            width: 50%;
-        }
-        &.two-thirds {
-            width: 66.7%;
-        }
-    }
-
     & > .loading {
         //margin-top: 10%;
     }
@@ -101,4 +48,4 @@ footer:not(.with-labels) ~ article { bottom: @article-bottom; }
 
 @media handheld, only screen and (min-width: 768px) {
     article.aside { .transform(translate3d(0px, 0, 0)); }
-}
+}