Discarded some code that does not work well with the needs

src/backing.h

@@ -1,41 +1,6 @@
 #pragma once
 
-#include "sandbox.h"
-
 #include <stdbool.h>
 #include <stdint.h>
-#include <time.h>
 
-/// @brief Returns whether the given name is a valid backing name. Backing names are valid if they start with a number (used as the ctime).
-/// @param name The name to check.
-/// @return Whether the name is valid or not.
-bool is_valid_backing_name(const char* name);
-
-/// @brief Returns the backing path for the given name.
-/// @param name The name of the backing. Note: This function does not check if the name is valid.
-/// @return The backing path.
-char* get_backing_path(const char* name);
-
-/// @brief Returns the backing path for the given name.
-/// @param name The name of the backing. Note: This function does not check if the name is valid.
-/// @return The backing path.
-bool backing_exists(const char* name);
-
-/// @brief Returns an array of all the backing names, terminated by a NULL pointer.
-/// @return An array of all the backing names. Note: The array must be freed by the caller, including every string in the array.
-char** list_backings(void);
-
-/// @brief Returns the ctime of the backing with the given name.
-/// @param name The name of the backing.
-/// @return The ctime of the backing.
-time_t get_backing_ctime(const char* name);
-
-/// @brief Returns the latest backing's name.
-/// @return The latest backing's name.
-char* get_latest_backing(void);
-
-/// @brief Creates a new backing with the given name from the given source disk.
-/// @param name The name of the new backing.
-/// @param source_disk The source disk to create the backing from. Note: If the source disk has a backing file, it must be a existing sandbox backing disk.
-/// @return Whether the backing was created successfully or not.
-bool create_backing(const char* name, const char* source_disk);
+#define BACKING_POOL "/var/lib/sandbox/backings"