add 1.7.2 update script

Author: ilicfilip

classes/update/class-update-172.php

@@ -0,0 +1,37 @@
+<?php
+/**
+ * Update class for version 1.7.2.
+ *
+ * @package Progress_Planner
+ */
+
+namespace Progress_Planner\Update;
+
+/**
+ * Update class for version 1.7.2.
+ *
+ * @package Progress_Planner
+ */
+class Update_172 {
+
+	const VERSION = '1.7.2';
+
+	/**
+	 * Run the update.
+	 *
+	 * @return void
+	 */
+	public function run() {
+		// Delete the 'progress_planner_pro_license_key' entry from wp_options table.
+		$this->delete_pro_license_key();
+	}
+
+	/**
+	 * Delete the 'progress_planner_pro_license_key' entry from wp_options table.
+	 *
+	 * @return void
+	 */
+	private function delete_pro_license_key() {
+		\delete_option( 'progress_planner_pro_license_key' );
+	}
+}