Create the Uninstall module.

modules/ppcp-uninstall/composer.json

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+{
+    "name": "woocommerce/ppcp-uninstall",
+    "type": "dhii-mod",
+    "description": "Uninstall module for PPCP",
+    "license": "GPL-2.0",
+    "require": {
+        "php": "^7.2 | ^8.0",
+        "dhii/module-interface": "^0.3.0-alpha1"
+    },
+    "autoload": {
+        "psr-4": {
+            "WooCommerce\\PayPalCommerce\\Uninstall\\": "src"
+        }
+    },
+    "minimum-stability": "dev",
+    "prefer-stable": true
+}

modules/ppcp-uninstall/extensions.php

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+<?php
+/**
+ * The uninstall module extensions.
+ *
+ * @package WooCommerce\PayPalCommerce\Uninstall
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\Uninstall;
+
+return array();

modules/ppcp-uninstall/module.php

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+<?php
+/**
+ * The uninstall module.
+ *
+ * @package WooCommerce\PayPalCommerce\Uninstall
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\Uninstall;
+
+use WooCommerce\PayPalCommerce\Vendor\Dhii\Modular\Module\ModuleInterface;
+
+return function (): ModuleInterface {
+	return new UninstallModule();
+};

modules/ppcp-uninstall/services.php

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+<?php
+/**
+ * The uninstall module services.
+ *
+ * @package WooCommerce\PayPalCommerce\Uninstall
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\Uninstall;
+
+return array(
+
+);

modules/ppcp-uninstall/src/UninstallModule.php

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+<?php
+/**
+ * The uninstall module.
+ *
+ * @package WooCommerce\PayPalCommerce\Uninstall
+ */
+
+declare(strict_types=1);
+
+namespace WooCommerce\PayPalCommerce\Uninstall;
+
+use WooCommerce\PayPalCommerce\Vendor\Dhii\Container\ServiceProvider;
+use WooCommerce\PayPalCommerce\Vendor\Dhii\Modular\Module\ModuleInterface;
+use WooCommerce\PayPalCommerce\Vendor\Interop\Container\ServiceProviderInterface;
+use WooCommerce\PayPalCommerce\Vendor\Psr\Container\ContainerInterface;
+
+/**
+ * Class UninstallModule
+ */
+class UninstallModule implements ModuleInterface {
+
+	/**
+	 * {@inheritDoc}
+	 */
+	public function setup(): ServiceProviderInterface {
+		return new ServiceProvider(
+			require __DIR__ . '/../services.php',
+			require __DIR__ . '/../extensions.php'
+		);
+	}
+
+	/**
+	 * {@inheritDoc}
+	 *
+	 * @param ContainerInterface $c A services container instance.
+	 */
+	public function run( ContainerInterface $c ): void {
+
+	}
+}