I have a macbook air dual booting macOS Catalina and Debian10 buster. I hold the option key at startup to choose the system I want. In the boot manager there's this efi partition (https://imgur.com/xKoQiEK) that I would like to delete, because it starts nothing but grub bash minimal (https://imgur.com/a/T5bpHAp), but I have not been able to identify this partition neither from macOS 'diskutils' nor from Debian 'fdisk'.
diskutil list disk0 output:
/dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *512.1 GB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_APFS Container disk1 305.9 GB disk0s2 3: Microsoft Basic Data 205.5 GB disk0s3 4: EFI NO NAME 536.9 MB disk0s4