It would help to know which distribution of Linux you are using. Guessing Fedora?
Are you in the process of installing or have you already installed the system?
If you have an installed system with a separate boot partition as sda1 and delete it, you will be removing your boot files.
Also, any higher numbered partitions will change by deleting sda1. sda2 will become sda1, etc..
I'm not really sure from your post if that is your intention so post the output requested above with more details on what your intentions are and the current status.