Remove secondary call avatar

and change 'paused' to 'on hold'

res/css/views/voip/_CallView.scss

@@ -116,31 +116,6 @@ limitations under the License.
     */
 }
 
-.mx_CallView_voice_secondaryAvatarContainer {
-    border-radius: 2000px;
-    overflow: hidden;
-    position: relative;
-    /*
-    &::after {
-        position: absolute;
-        content: '';
-        width: 100%;
-        height: 100%;
-        top: 50%;
-        left: 50%;
-        transform: translate(-50%, -50%);
-        background-color: rgba(0, 0, 0, 0.6);
-        background-image: url('$(res)/img/voip/paused.svg');
-        background-position: center;
-        background-size: 40px;
-        background-repeat: no-repeat;
-    }
-    .mx_CallView_pip &::after {
-        background-size: 24px;
-    }
-    */
-}
-
 .mx_CallView_voice_holdText {
     height: 20px;
     padding-top: 20px;