Remove old pre-commit hooks script as new approach exists (mapbox#2253)

.pre-commit-config.yaml

@@ -0,0 +1,28 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.2.0
+    hooks:
+    - id: trailing-whitespace
+      exclude: LICENSE.md
+    - id: end-of-file-fixer
+    - id: check-yaml
+    - id: check-json
+      exclude: .vscode/.*.json
+    - id: check-byte-order-marker
+    - id: check-merge-conflict
+- repo: "https://github.com/realm/SwiftLint"
+  rev: 0.55.1
+  hooks:
+    - id: swiftlint
+      entry: swiftlint --fix --strict
+- repo: https://github.com/psf/black
+  rev: 24.4.2
+  hooks:
+    - id: black
+      language_version: python3.12
+- repo: https://github.com/gitleaks/gitleaks
+  rev: v8.16.1
+  hooks:
+    - id: gitleaks

DEVELOPING.md

@@ -33,13 +33,13 @@ This project:
    to manage dependencies for development. CocoaPods is supported for *consuming*
    the SDK.
 
-5. uses [secret-shield](https://github.com/mapbox/secret-shield) to help block
-   secrets such as access tokens from being exposed. Setup `secret-shield` by running:
+5. Install pre-commit hooks
+  ```bash
+  brew install xcodegen swiftlint
+  pip install pre-commit
 
-   ```sh
-   npm install -g @mapbox/secret-shield
-   scripts/install-pre-commit/install-pre-commit.sh
-   ```
+  pre-commit install # Installs the pre-commit hooks
+  ```
 
 6. uses CircleCI and Firebase Test Lab for continuous integration.