introduce proper interface for deleteAppValue

lib/private/allconfig.php

@@ -96,6 +96,15 @@ class AllConfig implements \OCP\IConfig {
 		\OC_Appconfig::deleteKey($appName, $key);
 	}
 
+	/**
+	 * Removes all keys in appconfig belonging to the app
+	 *
+	 * @param string $appName the appName the configs are stored under
+	 */
+	public function deleteAppValues($appName) {
+		\OC_Appconfig::deleteApp($appName);
+	}
+
 
 	/**
 	 * Set a user defined value

lib/public/iappconfig.php

@@ -87,6 +87,7 @@ interface IAppConfig {
 	 * Remove app from appconfig
 	 * @param string $app app
 	 * @return bool
+	 * @deprecated use method deleteAppValue of \OCP\IConfig
 	 *
 	 * Removes all keys in appconfig belonging to the app.
 	 */

lib/public/iconfig.php

@@ -94,6 +94,13 @@ interface IConfig {
 	 */
 	public function deleteAppValue($appName, $key);
 
+	/**
+	 * Removes all keys in appconfig belonging to the app
+	 *
+	 * @param string $appName the appName the configs are stored under
+	 */
+	public function deleteAppValues($appName);
+
 
 	/**
 	 * Set a user defined value