Seems it could not be done in SSMS. Does Microsoft actually provide this option for users to delete single package within SSIS catalog? Thanks.
Best Regards, Mike
Microsoft has added Incremental package deployment in SQL 2016 - This feature lets you deploy one or more packages to an existing or new project without deploying the whole project.
As Incremental package deployment has been added, I believe, decremental for single package is not there. There are no any SPs other than catalog.delete_project, Folder and Environments
in SSIS catalog (Projects and Packages).