sys: remove aliases for deprecated EpollCreate1, EpollCtl, EpollWait

These have been deprecated since containerd v1.4.0.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

sys/epoll.go

@@ -1,34 +0,0 @@
-//go:build linux
-// +build linux
-
-/*
-   Copyright The containerd Authors.
-
-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
-
-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-*/
-
-package sys
-
-import "golang.org/x/sys/unix"
-
-// EpollCreate1 is an alias for unix.EpollCreate1
-// Deprecated: use golang.org/x/sys/unix.EpollCreate1
-var EpollCreate1 = unix.EpollCreate1
-
-// EpollCtl is an alias for unix.EpollCtl
-// Deprecated: use golang.org/x/sys/unix.EpollCtl
-var EpollCtl = unix.EpollCtl
-
-// EpollWait is an alias for unix.EpollWait
-// Deprecated: use golang.org/x/sys/unix.EpollWait
-var EpollWait = unix.EpollWait