Remove combined_open_ended XModule CSS (ORA1)

common/lib/xmodule/xmodule/css/combinedopenended/edit.scss

-.editor-bar {
-
-  .editor-tabs {
-
-    .advanced-toggle {
-      @include white-button;
-      height: auto;
-      margin-top: -1px;
-      padding: 3px 9px;
-      font-size: 12px;
-
-      &.current {
-        border: 1px solid $lightGrey !important;
-        border-radius: 3px !important;
-        background: $lightGrey !important;
-        color: $darkGrey !important;
-        pointer-events: none;
-        cursor: none;
-
-        &:hover, &:focus {
-          box-shadow: 0 0 0 0 !important;
-        }
-      }
-    }
-
-    .cheatsheet-toggle {
-      width: 21px;
-      height: 21px;
-      padding: 0;
-      margin: 0 ($baseline/4) 0 ($baseline*0.75);
-      border-radius: 22px;
-      border: 1px solid #a5aaaf;
-      background: #e5ecf3;
-      font-size: 13px;
-      font-weight: 700;
-      color: #565d64;
-      text-align: center;
-    }
-  }
-}
-
-.simple-editor-open-ended-cheatsheet {
-  position: absolute;
-  top: 0;
-  left: 100%;
-  width: 0;
-  border-radius: 0 3px 3px 0;
-  @include linear-gradient(left, $shadow-l1, $transparent 4px);
-  background-color: $white;
-  overflow: hidden;
-  @include transition(width .3s linear 0s);
-
-  &.shown {
-    width: 20%;
-    height: 100%;
-    overflow-y: scroll;
-  }
-
-  .cheatsheet-wrapper {
-    padding: 10%;
-  }
-
-  h6 {
-    margin-bottom: 7px;
-    font-size: 15px;
-    font-weight: 700;
-  }
-
-  .row {
-    @include clearfix();
-    padding-bottom: 5px !important;
-    margin-bottom: 10px !important;
-    border-bottom: 1px solid #ddd !important;
-
-    &:last-child {
-      border-bottom: none !important;
-      margin-bottom: 0 !important;
-    }
-  }
-
-  .col {
-    float: left;
-
-    &.sample {
-      width: 60px;
-      margin-right: 30px;
-    }
-  }
-
-  pre {
-    font-size: 12px;
-    line-height: 18px;
-  }
-
-  code {
-    padding: 0;
-    background: none;
-  }
-}
-
-.combinedopenended-editor-icon {
-  display: inline-block;
-  vertical-align: middle;
-  color: #333;
-}