component/caddy: Drop unused component

component/caddy/buildout.cfg

-[buildout]
-extends =
-  ../../component/golang/buildout.cfg
-
-parts =
-  gowork
-  caddy
-
-[caddy-get]
-<= go-git-package
-go.importpath = github.com/caddyserver/caddy
-repository    = https://lab.nexedi.com/nexedi/caddy.git
-revision      = nxd-v1.0.3-1-03fba31bf
-
-[gowork]
-golang  = ${golang1.17:location}
-install =
-  ${caddy-get:location}:./...
-
-[caddy]
-recipe = plone.recipe.command
-command = exit 0
-update-command = ${:command}
-output = ${gowork:bin}/caddy
-location = ${:output}