bash completion doesn't show "remove" option

[Ben Aceler]

Flatpak package contains bash script for bash completion feature. If I say `flatpak in<TAB>`, I will got `info` and `install` options.

Flatpak autocomplete options doesn't work for `remove` option. If I say `flatpak rem<TAB>`, I will got only `remote`, and `remove` will not be suggested.

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: flatpak 1.14.4-1ubuntu1
ProcVersionSignature: Ubuntu 6.2.0-24.24-generic 6.2.12
Uname: Linux 6.2.0-24-generic x86_64
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Fri Jul 14 13:30:21 2023
ProcEnviron:
 LANG=ru_RU.UTF-8
 PATH=(custom, no user)
 SHELL=/usr/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: flatpak
UpgradeStatus: Upgraded to lunar on 2023-05-14 (60 days ago)