Remove orphaned build/nsswitch.conf

This file was added in 2018 (PR #69238) to ensure Go's netgo DNS
resolver respects /etc/hosts in busybox-based control plane images.

In 2021 (PR #99015), the build switched to on-disk Dockerfiles and
distroless base images. The nsswitch.conf copying was dropped and
the distroless base (Debian-based) already includes /etc/nsswitch.conf.

Signed-off-by: Davanum Srinivas <davanum@gmail.com>

diff --git a/build/nsswitch.conf b/build/nsswitch.conf
deleted file mode 100644 (file)
index 997b2ed..0000000
--- a/build/nsswitch.conf
+++ /dev/null
@@ -1,2 +0,0 @@
-# ensure go's non-cgo resolver respects /etc/hosts
-hosts: files dns