Prevent a case where voiceUser collection was being clean for entire server

...orts/api/annotations/server/modifiers/clearAnnotations.js

...l5/imports/api/breakouts/server/methods/createBreakout.js

...html5/imports/api/captions/server/methods/editCaptions.js

...-html5/imports/api/captions/server/methods/updateOwner.js

.../imports/api/meetings/server/modifiers/meetingHasEnded.js

.../presentations/server/modifiers/setCurrentPresentation.js

...mports/api/screenshare/server/modifiers/addScreenshare.js

...imports/api/slides/server/modifiers/changeCurrentSlide.js

...ts/api/slides/server/modifiers/clearSlidesPresentation.js

...ton-html5/imports/api/users/server/methods/userLeaving.js

...on-html5/imports/api/users/server/modifiers/removeUser.js

...ports/api/voice-users/server/modifiers/clearVoiceUsers.js