message: remove(types): privateChannels field from Ready
  * refactor(types): remove privateChannels field from Ready
  BREAKING: since Tuesday, 6 April 2021, private_channels field has been undocumented by Reference commit:
diff: @@ -9,8 +9,6 @@ export interface Ready {
  v: number;
  /** Information about the user including email */
  user: User;
  - /** Empty array */
  - privateChannels: [];
  /** The guilds the user is in */
  guilds: UnavailableGuild[];
  /** Used for resuming connections */
  