fix of double free memory

There was double free memory because refresh_token is removed
from delayed callbacks after finish call and second time is when
reconnect func is called in by refresh_token (refresh_token->is_refresh_token_retry_over->reconnect).
The clean up occurs in cloud_manager_stop, so we can remove it.
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passed #4363
doxygen

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Linux_Secured_Test

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passed #4361
Linux_Unsecured_Test

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