remove broadcast-related code

app/assets/stylesheets/app.scss

@@ -230,40 +230,6 @@ details .arrow {
   }
 }
 
-.live-broadcast {
-
-  color: $red;
-  font-weight: bold;
-  position: relative;
-  display: inline-block;
-
-  &:before {
-    content: "";
-    display: block;
-    float: right;
-    margin-top: 1px;
-    margin-left: 5px;
-    border: none;
-    background: $red;
-    width: 19px;
-    height: 19px;
-    border-radius: 50%;
-    animation: live-pulse 1.5s infinite;
-    //box-shadow: inset 0 0 0 2px $red, inset 0 0 0 5px $white;
-  }
-
-  &--left {
-
-    &:before {
-      float: left;
-      margin-left: 0;
-      margin-right: 10px;
-    }
-
-  }
-
-}
-
 input:-webkit-autofill::first-line {
   @include core-19;
 }

app/assets/stylesheets/components/broadcast-message.scss

@@ -1,43 +0,0 @@
-.broadcast-message {
-
-  &-wrapper {
-    position: relative;
-    width: 100%;
-    max-width: 464px;
-    box-sizing: border-box;
-    padding: govuk-spacing(9) govuk-spacing(3) govuk-spacing(3) govuk-spacing(3);
-    border: solid 1px transparent; // to show it's area in high contrast mode
-    background: $panel-colour;
-    box-shadow: inset 0 -1px 0 0 rgba(0, 0, 0, 0.05);
-    border-radius: 5px;
-    white-space: normal;
-    margin: govuk-spacing(2) 0 govuk-spacing(4) 0;
-    clear: both;
-    word-wrap: break-word;
-  }
-
-  &-heading {
-    display: block;
-    position: absolute;
-    top: -1px;
-    left: -1px;
-    padding: govuk-spacing(2) + 1px govuk-spacing(3) (govuk-spacing(2) - 1px) 15px;
-    border: solid 1px transparent; // to show it's area in high contrast mode
-    width: calc(100% + 2px); // grow to overlap wrapper's border (when combined with top and left)
-    box-sizing: border-box;
-    font-weight: bold;
-    background: $grey-1;
-    color: $white;
-    border-top-right-radius: 5px;
-    border-top-left-radius: 5px;
-    box-shadow: inset 0 -1px 0 0 rgba(0, 0, 0, 0.1);
-
-    &__icon {
-      padding-right: 6px;
-      // user agents set this to 'none' by default for svgs so set as 'auto' to allow
-      // colours to be overridden in forced-color modes like Windows high contrast mode
-      forced-color-adjust: auto;
-    }
-  }
-
-}

app/assets/stylesheets/main.scss

@@ -71,7 +71,6 @@ $path: '/static/images/';
 @import 'components/task-list';
 @import 'components/loading-indicator';
 @import 'components/area-list';
-@import 'components/broadcast-message';
 @import 'components/content-metadata';
 
 @import 'views/dashboard';