diff --git a/opam/chrome-trace.opam b/opam/chrome-trace.opam
index c51f0c727ba..8e1bb9c58a1 100644
--- a/opam/chrome-trace.opam
+++ b/opam/chrome-trace.opam
@@ -18,8 +18,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["(latest)"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dune-action-plugin.opam b/opam/dune-action-plugin.opam
index a81a93cf714..7ca86d8fe16 100644
--- a/opam/dune-action-plugin.opam
+++ b/opam/dune-action-plugin.opam
@@ -31,8 +31,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["(latest)"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dune-build-info.opam b/opam/dune-build-info.opam
index 27b124ff5b3..c000a0bd76a 100644
--- a/opam/dune-build-info.opam
+++ b/opam/dune-build-info.opam
@@ -24,8 +24,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["(latest)"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dune-configurator.opam b/opam/dune-configurator.opam
index d35f0e09d4e..8c2ac28f59d 100644
--- a/opam/dune-configurator.opam
+++ b/opam/dune-configurator.opam
@@ -28,8 +28,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["(latest)"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dune-glob.opam b/opam/dune-glob.opam
index abd160388b7..0efc032abe1 100644
--- a/opam/dune-glob.opam
+++ b/opam/dune-glob.opam
@@ -21,8 +21,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["(latest)"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dune-private-libs.opam b/opam/dune-private-libs.opam
index 339adc6540e..890a5e60fa1 100644
--- a/opam/dune-private-libs.opam
+++ b/opam/dune-private-libs.opam
@@ -29,8 +29,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["none"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dune-private-libs.opam.template b/opam/dune-private-libs.opam.template
index a18303b260c..44877d421e9 100644
--- a/opam/dune-private-libs.opam.template
+++ b/opam/dune-private-libs.opam.template
@@ -1,7 +1,5 @@
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dune-rpc-lwt.opam b/opam/dune-rpc-lwt.opam
index c8c0657d57b..f7152db3a74 100644
--- a/opam/dune-rpc-lwt.opam
+++ b/opam/dune-rpc-lwt.opam
@@ -20,8 +20,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["(latest)"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dune-rpc.opam b/opam/dune-rpc.opam
index d81ac268b76..0474c5fbd5f 100644
--- a/opam/dune-rpc.opam
+++ b/opam/dune-rpc.opam
@@ -23,8 +23,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["(latest)"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dune-site.opam b/opam/dune-site.opam
index ac4dfd59660..9b80b65bf85 100644
--- a/opam/dune-site.opam
+++ b/opam/dune-site.opam
@@ -17,8 +17,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["(latest)"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/dyn.opam b/opam/dyn.opam
index ac6d4b92cf4..066d17900d5 100644
--- a/opam/dyn.opam
+++ b/opam/dyn.opam
@@ -19,8 +19,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["none"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/fs-io.opam b/opam/fs-io.opam
index 09a75355f57..d7d6b326414 100644
--- a/opam/fs-io.opam
+++ b/opam/fs-io.opam
@@ -18,8 +18,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["none"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/ocamlc-loc.opam b/opam/ocamlc-loc.opam
index 3712a0babe9..8c8790f3de1 100644
--- a/opam/ocamlc-loc.opam
+++ b/opam/ocamlc-loc.opam
@@ -22,8 +22,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["none"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/ordering.opam b/opam/ordering.opam
index 5ebe0df5a57..9abb30724e5 100644
--- a/opam/ordering.opam
+++ b/opam/ordering.opam
@@ -17,8 +17,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["none"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/stdune.opam b/opam/stdune.opam
index ef5424aa15a..9bcf92314cf 100644
--- a/opam/stdune.opam
+++ b/opam/stdune.opam
@@ -25,8 +25,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["none"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/top-closure.opam b/opam/top-closure.opam
index 247b2e6807d..8341803d220 100644
--- a/opam/top-closure.opam
+++ b/opam/top-closure.opam
@@ -17,8 +17,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["none"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"
diff --git a/opam/xdg.opam b/opam/xdg.opam
index 5880089bc86..9ca5433ca1a 100644
--- a/opam/xdg.opam
+++ b/opam/xdg.opam
@@ -18,8 +18,6 @@ dev-repo: "git+https://github.com/ocaml/dune.git"
 x-maintenance-intent: ["(latest)"]
 build: [
   ["dune" "subst"] {dev}
-  ["rm" "-rf" "vendor/csexp"]
-  ["rm" "-rf" "vendor/pp"]
   [
     "dune"
     "build"