podman network can not rm network created with --macvlan

[ypu]

Is this a BUG REPORT or FEATURE REQUEST? (leave only one on its own line)

/kind bug

Description

podman network can not remove network created with --macvlan as the conflist file is not include a bridge. It will report:

Error: failed to find network interface name in "/etc/cni/net.d/podman-dhcp.conflist": unable to find interface name for network

Steps to reproduce the issue:

1. Use podman network to create a network conflist file

# podman network create --macvlan ens8 podman-macvlan
/etc/cni/net.d/podman-macvlan.conflist

2. Try to remove it with podman network rm

# podman network rm podman-macvlan
Error: failed to find network interface name in "/etc/cni/net.d/podman-macvlan.conflist": unable to find interface name for network

Describe the results you received:
Command failed with error message

Describe the results you expected:
the network can be delete as expected

Additional information you deem important (e.g. issue happens only occasionally):

Output of podman version:

Version:      2.2.0-dev
API Version:  2.1.0
Go Version:   go1.14.10
Git Commit:   397e9a9f1b146617120690243a89fa9541f0854c
Built:        Thu Nov 26 18:02:42 2020
OS/Arch:      linux/amd64

Output of podman info --debug:

host:
  arch: amd64
  buildahVersion: 1.18.0
  cgroupManager: systemd
  cgroupVersion: v1
  conmon:
    package: conmon-2.0.19-1.fc32.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.0.19, commit: 5dce9767526ed27f177a8fa3f281889ad509fea7'
  cpus: 4
  distribution:
    distribution: fedora
    version: "32"
  eventLogger: journald
  hostname: bootp-73-3-208.eng.pek2.redhat.com
  idMappings:
    gidmap: null
    uidmap: null
  kernel: 5.7.15-200.fc32.x86_64
  linkmode: dynamic
  memFree: 2946670592
  memTotal: 8340848640
  ociRuntime:
    name: runc
    package: runc-1.0.0-144.dev.gite6555cc.fc32.x86_64
    path: /usr/bin/runc
    version: |-
      runc version 1.0.0-rc10+dev
      commit: fbdbaf85ecbc0e077f336c03062710435607dbf1
      spec: 1.0.1-dev
  os: linux
  remoteSocket:
    path: /run/podman/podman.sock
  rootless: false
  slirp4netns:
    executable: ""
    package: ""
    version: ""
  swapFree: 4294426624
  swapTotal: 4294963200
  uptime: 526h 3m 9.95s (Approximately 21.92 days)
registries:
  search:
  - registry.access.redhat.com
  - registry.redhat.io
  - docker.io
store:
  configFile: /etc/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions:
    overlay.mountopt: nodev,metacopy=on
  graphRoot: /var/lib/containers/storage
  graphStatus:
    Backing Filesystem: xfs
    Native Overlay Diff: "false"
    Supports d_type: "true"
    Using metacopy: "true"
  imageStore:
    number: 2
  runRoot: /var/run/containers/storage
  volumePath: /var/lib/containers/storage/volumes
version:
  APIVersion: 2.1.0
  Built: 1606384962
  BuiltTime: Thu Nov 26 18:02:42 2020
  GitCommit: 397e9a9f1b146617120690243a89fa9541f0854c
  GoVersion: go1.14.10
  OsArch: linux/amd64
  Version: 2.2.0-dev

Have you tested with the latest version of Podman and have you checked the Podman Troubleshooting Guide?

Yes

Additional environment details (AWS, VirtualBox, physical, etc.):
fedora 32 guest