operating system – Change from /boot/efi to non boot/efi

i have a Debian server A with given partition from lsblk and Debian server B with root partition…I would like to convert server A same as server B. Basically i don’t want the server A with /boot/efi type …Can some experts guide how it can be acheived as this is a production server and baremetal.

Server A
sda 8:0 0 931.5G 0 disk

sdb 8:16 0 931.5G 0 disk

├─sdb1 8:17 0 512M 0 part /boot/efi

├─sdb2 8:18 0 9.3G 0 part /

├─sdb3 8:19 0 7.5G 0 part [SWAP]

├─sdb4 8:20 0 18.6G 0 part /home

└─sdb5 8:21 0 55.9G 0 part /var

Server B

sda 8:0 0 931.5G 0 disk

sdb 8:16 0 931.5G 0 disk

|-sdb1 8:17 0 9.3G 0 part /

│-sdb2 8:18 0 7.5G 0 part [SWAP]

│-sdb3 8:19 0 1K 0 part

|-sdb5 8:21 0 18.6G 0 part /home

│-sdb6 8:22 0 57.9G 0 part /var

Haven’t tried any method so far