fix(Activities): when station/playlist is deleted, the ActivityItem shouldn't have a reference to it

Signed-off-by: Jonathan <theflametrooper@gmail.com>

backend/logic/actions/playlists.js

@@ -1414,8 +1414,7 @@ export default {
 					userId: playlist.createdBy,
 					type: "playlist__remove",
 					payload: {
-						message: `Removed playlist <playlistId>${playlist.displayName}</playlistId>`,
-						playlistId
+						message: `Removed playlist ${playlist.displayName}`
 					}
 				});
 

backend/logic/actions/stations.js

@@ -2278,7 +2278,7 @@ export default {
 				ActivitiesModule.runJob("ADD_ACTIVITY", {
 					userId: session.userId,
 					type: "station__remove",
-					payload: { message: `Removed a station named <stationId>${station.displayName}</stationId>` }
+					payload: { message: `Removed a station named ${station.displayName}` }
 				});
 
 				return cb({