Refactored code in src/user/delete.js #572
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resolves #474
To reduce function nesting that is greater than 4 levels, I refactored the updateCount function. I moved an inside lambda declaration outside and declared it as a separate helper function. This change results in 4 levels of nesting. I also added assert statements to test the correctness of the helper functions.
Tested in UI by creating, and then deleting a user. I verified that follower counts were updated and the console.log message showed.