I 'am trying to do change the status of issue , but it is asking to provide time spent from every transition. Is it possible to remove the time spent for every step of status change?
You are probably getting a "pop-up" screen on each status change where you're asked to enter your time spent?
If you have the permissions to do so: you have to edit the workflow of that issue type for the project. In the workflow you have to edit the transtions (the arrows between statuses). You'll see:
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