Merge pull request #27432 from thaJeztah/deprecate-fedora-22

Remove Fedora 22 from RPM build as it is EOL

contrib/builder/rpm/amd64/fedora-22/Dockerfile

@@ -1,18 +0,0 @@
-#
-# THIS FILE IS AUTOGENERATED; SEE "contrib/builder/rpm/amd64/generate.sh"!
-#
-
-FROM fedora:22
-
-RUN dnf install -y @development-tools fedora-packager
-RUN dnf install -y btrfs-progs-devel device-mapper-devel glibc-static libseccomp-devel libselinux-devel libtool-ltdl-devel pkgconfig selinux-policy selinux-policy-devel sqlite-devel systemd-devel tar git
-
-ENV GO_VERSION 1.7.1
-RUN curl -fSL "https://storage.googleapis.com/golang/go${GO_VERSION}.linux-amd64.tar.gz" | tar xzC /usr/local
-ENV PATH $PATH:/usr/local/go/bin
-
-ENV AUTO_GOPATH 1
-
-ENV DOCKER_BUILDTAGS pkcs11 seccomp selinux
-ENV RUNC_BUILDTAGS seccomp selinux
-

docs/reference/commandline/dockerd.md

@@ -949,11 +949,6 @@ these resources are name-based, not id-based.  If the numeric ID information
 provided does not exist as entries in `/etc/passwd` or `/etc/group`, daemon
 startup will fail with an error message.
 
-> **Note:** On Fedora 22, you have to `touch` the `/etc/subuid` and `/etc/subgid`
-> files to have ranges assigned when users are created.  This must be done
-> *before* the `--userns-remap` option is enabled. Once these files exist, the
-> daemon can be (re)started and range assignment on user creation works properly.
-
 **Example: starting with default Docker user management:**
 
 ```bash