/etc/network/interfaces.d/usb0 was not removed on upgrade

Commit bbcd9a58 removed /etc/network/interfaces.d/usb0 from the package, but with recent librem5-devkit-base version it was still installed on my system:

$ dpkg-query -S /etc/network/interfaces.d/usb0
librem5-devkit-base: /etc/network/interfaces.d/usb0

$ dpkg-query --status librem5-devkit-base
Package: librem5-devkit-base
Status: install ok installed
Priority: optional
Section: utils
Installed-Size: 65
Maintainer: Guido Günther <agx@sigxcpu.org>
Architecture: arm64
Source: librem5-devkit-tools
Version: 0.0.11~352.gbpa3135d
Depends: flash-kernel, i2c-tools, jitterentropy-rngd, mmc-utils, python3, python3-evdev, rfkill, u-boot-tools
Breaks: phoc (<< 0.1.6), wys (<< 0.1.1)
Conffiles:
 /etc/flash-kernel/ubootenv.d/root f8aaeae3d4a2f28dedf7a472cf8cacb0
 /etc/kernel/postinst.d/update-Image 6c6be40dc871b7a90698c26910a6d651
 /etc/modprobe.d/librem5-devkit.conf 2fbb0093d5f6a00a47a75b885e15b93c
 /etc/modules-load.d/librem5-devkit.conf 8ffc6cc87335fc87f28bdcaf26449527
 /etc/pulse/daemon.conf.d/90-librem5-devkit.conf 7336b340aaf325459bd1e4cc2c47f139
 /etc/pulse/librem5-devkit.pa 7e2cbdbb7ba0fc3bbb7b03563757f6a6
 /etc/sudoers.d/devkit 628a92cce0ce9f35cd1c2b6f46681a5f
 /etc/network/interfaces.d/usb0 f6c46c0874d2c714c4e5e5c718c67ef5 obsolete
Description: Basic configuration for the librem5-devkit
 This package contains initial configuration for the
 librem5 devkits.
Homepage: https://source.puri.sm/Librem5/librem5-devkit-tools/

I need to read up on maintscripts, but is it possible that this happened because of CI repo?