Hi @Garima Das,
Jason 's suggestion is helpful, I have tested it for you, here are the test results.
First, I created two task sequences to install apps. They are all show in Software Center.
Second, I modified the expiration on the deployment of the Task Sequence application as suggested by Json.
After some time, the task sequence which named Task Sequence application does not appear in Software Center.
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.