libs/toolchain: remove eglibc remnant file

This removes package/libs/toolchain/eglibc-files/etc/nsswitch.conf.

Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
(cherry picked from commit c47eff0df3)

package/libs/toolchain/eglibc-files/etc/nsswitch.conf

@@ -1,13 +0,0 @@
-passwd:files
-shadow:files
-group:files
-hosts:dns files
-bootparams:files
-ethers:files
-netmasks:files
-networks:files
-protocols:files
-rpc:files
-services:files
-automount:files
-aliases:files