Stop internal HDD from being removable

I believe there should be some ways to do this, but I just can't find the right words for my search query.

Recently my MacBook Pro crashed in a complicated way. I swapped a broken HDD and the working SuperDrive with an SSD and a new HDD respectively during the repair.

The desktop shows me that I have two internal drives, which is correct. However, the context menu on the HDD (which is just a data drive and is in the place where SuperDrive used to be) has the option to eject the disk. I know I can mount it back using Disk Utility if I accidentally click this option but I don't want the eject option in the first place. Is there any flag I can set to remove that option, or is it just impossible?

I also realized that the drive in question does not have the 'eject' button in the Finder window like USB flash drives or any removable device do.