apt tells me that grub-efi, grub2-common are no longer needed

[Markus <debianer@gmx.de>]

    Hi, just before and also after today's "apt full-upgrade" apt tells
    me that:
    
The following packages were automatically installed and are no longer required:
efibootmgr grub-efi-amd64-bin grub-efi-amd64-signed grub2-common
libappindicator3-1 libcanberra-gtk3-0 libcanberra-gtk3-module
libclutter-gtk-1.0-0 libdbusmenu-glib4 libdbusmenu-gtk3-4 libindicator3-7
libupsclient4 linux-headers-5.10.0-0.bpo.4-amd64
linux-headers-5.10.0-0.bpo.4-common linux-image-5.10.0-0.bpo.4-amd64
linux-kbuild-4.19 linux-kbuild-5.9 mokutil shim-helpers-amd64-signed
shim-signed-common
shim-unsigned

    I don't have a good feeling when I see that it allows me to remove 
    "efibootmgr grub-efi-amd64-bin grub-efi-amd64-signed grub2-common"
    
    
    
    What is wrong here? I am on Buster and used kernel
    5.10.0-0.bpo.5-amd64. With today's
    
    full-upgrade 5.10.0-0.bpo.7-amd64 came in.
    
    
    Cheers