wsl: remove wsl-clipboard-ssh-add script

wsl/README.md

@@ -8,7 +8,6 @@ Use [`install.cmd`](install.cmd) to set up a new WSL installation. Run without a
 
 - [`wsl-apt`](scripts/wsl-apt) - run `apt update`/`upgrade`/`install`/`remove`/`autoremove`/`autoclean`
 	- any package names given as arguments are treated as packages to `install`, except any prefixed with a `-` are treated as packages to `remove`
-- [`wsl-clipboard-ssh-add`](scripts/wsl-clipboard-ssh-add) - add private key on Windows clipboard to SSH authentication agent
 - [`wsl-expose-filesystem`](scripts/wsl-expose-filesystem) - expose entire filesystem to all WSL instances at `/mnt/wsl/$WSL_DISTRO_NAME`
 - [`wsl-expose-ports`](scripts/wsl-expose-ports) - expose one or more ports within WSL to the outside world
 	- this sets up a port proxy and a Windows firewall rule for each exposed port, and removes previous port proxies and firewall rules

wsl/scripts/wsl-clipboard-ssh-add

@@ -1,2 +0,0 @@
-#!/bin/sh
-powershell.exe -noprofile -command get-clipboard | tr --delete \\r | ssh-add -