Remove legacy web raise hand code

modules/UI/UI.js

     VideoLayout.onDisplayNameChanged(id, displayName);
 };
 
-/**
- * Sets the "raised hand" status for a participant.
- *
- * @param {string} id - The id of the participant whose raised hand UI should
- * be updated.
- * @param {string} name - The name of the participant with the raised hand
- * update.
- * @param {boolean} raisedHandStatus - Whether the participant's hand is raised
- * or not.
- * @returns {void}
- */
-UI.setRaisedHandStatus = (id, name, raisedHandStatus) => {
-    VideoLayout.setRaisedHandStatus(id, raisedHandStatus);
-};
-
-/**
- * Sets the local "raised hand" status.
- */
-UI.setLocalRaisedHandStatus
-    = raisedHandStatus =>
-        VideoLayout.setRaisedHandStatus(
-            APP.conference.getMyUserId(),
-            raisedHandStatus);
-
 /**
  * Initialize conference UI.
  */

modules/UI/videolayout/SmallVideo.js

                                     = { statsPopoverPosition }
                                 userID = { this.id } />
                             : null }
-                        { this._showRaisedHand
-                            ? <RaisedHandIndicator
-                                iconSize = { iconSize }
-                                participantId = { this.id }
-                                tooltipPosition = { tooltipPosition } />
-                            : null }
+                        <RaisedHandIndicator
+                            iconSize = { iconSize }
+                            participantId = { this.id }
+                            tooltipPosition = { tooltipPosition } />
                         { this._showDominantSpeaker
                             ? <DominantSpeakerIndicator
                                 iconSize = { iconSize }

modules/UI/videolayout/VideoLayout.js

         }
     },
 
-    /**
-     * Sets the "raised hand" status for a participant identified by 'id'.
-     */
-    setRaisedHandStatus(id, raisedHandStatus) {
-        const video
-            = APP.conference.isLocalId(id)
-                ? localVideoThumbnail : remoteVideos[id];
-
-        if (video) {
-            video.showRaisedHandIndicator(raisedHandStatus);
-            if (raisedHandStatus) {
-                video.showDominantSpeakerIndicator(false);
-            }
-        }
-    },
-
     /**
      * On dominant speaker changed event.
      *

react/features/base/participants/middleware.js

 import {
     getAvatarURLByParticipantId,
     getLocalParticipant,
-    getParticipantById,
     getParticipantCount,
     getParticipantDisplayName
 } from './functions';
                     'raisedHand',
                     raisedHand);
         }
-
-        if (typeof APP === 'object') {
-            if (local) {
-                APP.UI.onLocalRaiseHandChanged(raisedHand);
-                APP.UI.setLocalRaisedHandStatus(raisedHand);
-            } else {
-                const remoteParticipant = getParticipantById(getState(), id);
-
-                remoteParticipant
-                    && APP.UI.setRaisedHandStatus(
-                        remoteParticipant.id,
-                        remoteParticipant.name,
-                        raisedHand);
-            }
-        }
     }
 
     // Notify external listeners of potential avatarURL changes.