Remove core msgs

[dhruvtya]

Description

Removing the following definitions from the public facing polymath_msgs since they have now been moved to core

  # Messages
  "msg/BagRecording.msg"
  "msg/BagRecordingStatus.msg"
  "msg/GeoBoundary.msg"
  "msg/MapIdNamePair.msg"
  "msg/Route.msg"
  "msg/RouteEdge.msg"
  "msg/RouteNode.msg"
  "msg/StorageSummary.msg"

  # Services
  "srv/DeleteMap.srv"
  "srv/FetchRouteNode.srv"
  "srv/GetBagRecordingStatus.srv"
  "srv/ListBagRecordings.srv"
  "srv/ListMaps.srv"
  "srv/ListRouteGraphs.srv"
  "srv/LoadMap.srv"
  "srv/ManageRouteGraph.srv"
  "srv/ModifyRouteEdge.srv"
  "srv/ModifyRouteNode.srv"
  "srv/StartBagRecording.srv"
  "srv/StopBagRecording.srv"
  "srv/StorageRemoveSession.srv"
  "srv/StorageSaveSession.srv"
  "srv/StorageStartSession.srv"
  "srv/StorageStopSession.srv"

  # Actions
  "action/GenerateOfflineMap.action"