diff --git a/components/style/binding_tools/README.md b/components/style/binding_tools/README.md
index 5b23c7a57bb..e1465143e32 100644
--- a/components/style/binding_tools/README.md
+++ b/components/style/binding_tools/README.md
@@ -5,8 +5,3 @@ This directory contains simple tools for generating the Rust bindings for [stylo
 ## `setup_bindgen.sh`
 
 This clones Servo's version of bindgen, and uses `llvm-3.8` library to build it. It will then be used to generate the Rust bindings.
-
-## `regen.sh`
-
-This will regenerate the bindings for the `ServoBindings.h` file in your gecko
-build. The generated bindings live in `components/style/gecko_bindings/bindings.rs`. For structs, the bindings are in `components/style/gecko_bindings/structs_*`
diff --git a/components/style/binding_tools/regen.sh b/components/style/binding_tools/regen.sh
deleted file mode 100755
index d08e17116b0..00000000000
--- a/components/style/binding_tools/regen.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/usr/bin/env bash
-
-# This Source Code Form is subject to the terms of the Mozilla Public
-# License, v. 2.0. If a copy of the MPL was not distributed with this
-# file, You can obtain one at http://mozilla.org/MPL/2.0/.
-
-set -o errexit
-set -o nounset
-set -o pipefail
-
-TOOLS_DIR="$(dirname ${0})"
-
-if [[ ${#} -eq 0 ]]; then
-  echo "Usage: ${0} /path/to/gecko/objdir [other-regen.py-flags]"
-  exit 1
-fi
-
-# Check for rust-bindgen
-if [[ ! -d "${TOOLS_DIR}/rust-bindgen" ]]; then
-  echo "rust-bindgen not found. Run setup_bindgen.sh first."
-  exit 1
-fi
-
-# Check for /usr/include
-if [[ ! -d /usr/include ]]; then
-  echo "/usr/include doesn't exist." \
-       "Mac users may need to run 'xcode-select --install.'"
-  exit 1
-fi
-
-if [[ "$(uname)" == "Linux" ]]; then
-  LIBCLANG_PATH=/usr/lib/llvm-3.8/lib
-else
-  LIBCLANG_PATH="$(brew --prefix llvm38)/lib/llvm-3.8/lib"
-fi
-
-"./${TOOLS_DIR}/regen.py" --target all "${@}"
diff --git a/components/style/binding_tools/setup_bindgen.sh b/components/style/binding_tools/setup_bindgen.sh
index feb788d4bab..4447b2ccda3 100755
--- a/components/style/binding_tools/setup_bindgen.sh
+++ b/components/style/binding_tools/setup_bindgen.sh
@@ -28,11 +28,3 @@ fi
 
 export LD_LIBRARY_PATH="${LIBCLANG_PATH}"
 export DYLD_LIBRARY_PATH="${LIBCLANG_PATH}"
-
-# Don't try to clone twice.
-if [[ ! -d rust-bindgen ]]; then
-  git clone https://github.com/servo/rust-bindgen.git
-fi
-
-cd rust-bindgen
-cargo build --features llvm_stable --release