treewide: remove bzlmod dependency workaround

Closes #487 #486 #485 #484 #483

Change-Id: I2de434dab96743f9051b8c2064fb9f7d05d548aa
Reviewed-on: https://review.monogon.dev/c/monogon/+/4350
Tested-by: Jenkins CI
Reviewed-by: Leopold Schabel <leo@monogon.tech>
diff --git a/third_party/urcu/urcu.bzl b/third_party/urcu/urcu.bzl
index 57307f1..351611d 100644
--- a/third_party/urcu/urcu.bzl
+++ b/third_party/urcu/urcu.bzl
@@ -3,7 +3,7 @@
 
 template_file(
     name = "config.h",
-    src = "@@//third_party/urcu:config.h.in",
+    src = ":config.h.in",
     substitutions = {},
 )