libhydra: Remove unused hydra->daemon

src/libhydra/hydra.c

@@ -59,7 +59,6 @@ void libhydra_deinit()
 
 	this->public.attributes->destroy(this->public.attributes);
 	this->public.kernel_interface->destroy(this->public.kernel_interface);
-	free((void*)this->public.daemon);
 	free(this);
 	hydra = NULL;
 }
@@ -67,7 +66,7 @@ void libhydra_deinit()
 /**
  * Described in header.
  */
-bool libhydra_init(const char *daemon)
+bool libhydra_init()
 {
 	private_hydra_t *this;
 
@@ -81,7 +80,6 @@ bool libhydra_init(const char *daemon)
 	INIT(this,
 		.public = {
 			.attributes = attribute_manager_create(),
-			.daemon = strdup(daemon ?: "libhydra"),
 		},
 		.ref = 1,
 	);

src/libhydra/hydra.h

@@ -53,11 +53,6 @@ struct hydra_t {
 	 * kernel interface to communicate with kernel
 	 */
 	kernel_interface_t *kernel_interface;
-
-	/**
-	 * name of the daemon that initialized the library
-	 */
-	const char *daemon;
 };
 
 /**
@@ -70,15 +65,12 @@ extern hydra_t *hydra;
 /**
  * Initialize libhydra.
  *
- * The daemon's name is used to load daemon-specific settings.
- *
  * libhydra_init() may be called multiple times in a single process, but each
- * caller should call libhydra_deinit() for each call to libhydra_init().
+ * caller must call libhydra_deinit() for each call to libhydra_init().
  *
- * @param daemon		name of the daemon that initializes the library
  * @return				FALSE if integrity check failed
  */
-bool libhydra_init(const char *daemon);
+bool libhydra_init();
 
 /**
  * Deinitialize libhydra.