build: remove cilium

This was used back when we were considering CIlium for our networking
layer. However, we abandoned that idea, and as such these are all
unnecessary.

Test Plan: Refactor, CI only.

X-Origin-Diff: phab/D685
GitOrigin-RevId: 30f296d7626d64cc1a07a73e4e7bbd18d9e9d933
diff --git a/build/fietsje/deps_containerd.go b/build/fietsje/deps_containerd.go
index 79b46aa..5172ffe 100644
--- a/build/fietsje/deps_containerd.go
+++ b/build/fietsje/deps_containerd.go
@@ -73,6 +73,7 @@
 		"github.com/prometheus/procfs",
 		"github.com/russross/blackfriday/v2",
 		"github.com/seccomp/libseccomp-golang",
+		"github.com/shurcooL/sanitized_anchor_name",
 		"github.com/sirupsen/logrus",
 		"github.com/syndtr/gocapability",
 		"github.com/tchap/go-patricia",