diff --git a/substrate/.gitlab-ci.yml b/substrate/.gitlab-ci.yml
index 87efc43af2..5e406b36c5 100644
--- a/substrate/.gitlab-ci.yml
+++ b/substrate/.gitlab-ci.yml
@@ -661,8 +661,7 @@ build-rustdoc:
     - ./crate-docs/
   script:
     # FIXME: it fails with `RUSTDOCFLAGS="-Dwarnings"`
-    - RUSTDOCFLAGS="--html-in-header $(pwd)/.maintain/rustdoc-header.html"
-        time cargo +nightly doc --no-deps --workspace --all-features --verbose
+    - time cargo +nightly doc --no-deps --workspace --all-features --verbose
     - rm -f ./target/doc/.lock
     - mv ./target/doc ./crate-docs
     # FIXME: remove me after CI image gets nonroot
diff --git a/substrate/.maintain/rustdoc-header.html b/substrate/.maintain/rustdoc-header.html
deleted file mode 100644
index a679d5e299..0000000000
--- a/substrate/.maintain/rustdoc-header.html
+++ /dev/null
@@ -1,10 +0,0 @@
-<script defer type="text/javascript" src="https://substrate.dev/js/config.js"></script>
-<script defer type="text/javascript" src="https://substrate.dev/js/klaro.min.js"></script>
-<script async type="opt-in" data-type="application/javascript"
-		data-src="https://www.googletagmanager.com/gtag/js?id=UA-145158313-2" data-name="googleAnalytics"></script>
-<script type="opt-in" data-type="application/javascript" data-name="googleAnalytics">
-      window.dataLayer = window.dataLayer || [];
-      function gtag(){dataLayer.push(arguments);}
-      gtag('js', new Date());
-      gtag('config', 'UA-145158313-2');
-</script>