Remove storage file transfer backend

Signed-off-by: Simone Orru <simone.orru@secomind.com>

Author: sorru94

lib/edgehog_device/file_transfer/download.c

@@ -275,9 +275,7 @@ static int verify_digest(edgehog_ft_http_cbk_data_t *data, const char *expected_
 const edgehog_ft_file_write_cbks_t *get_callbacks(const char *destination_type)
 {
     const edgehog_ft_file_write_cbks_t *file_cbks = NULL;
-    if (strcmp(destination_type, "storage") == 0) {
-        file_cbks = &file_transfer_storage_write_cbks;
-    } else if (strcmp(destination_type, "stream") == 0) {
+    if (strcmp(destination_type, "stream") == 0) {
         file_cbks = &edgehog_ft_stream_write_cbks;
     } else if (strcmp(destination_type, "filesystem") == 0) {
         file_cbks = &edgehog_ft_filesystem_write_cbks;

lib/edgehog_device/file_transfer/storage.c

@@ -159,9 +159,7 @@ void edgehog_ft_handle_device_to_server(
 const edgehog_ft_file_read_cbks_t *get_callbacks(const char *source_type)
 {
     const edgehog_ft_file_read_cbks_t *file_cbks = NULL;
-    if (strcmp(source_type, "storage") == 0) {
-        file_cbks = &file_transfer_storage_read_cbks;
-    } else if (strcmp(source_type, "stream") == 0) {
+    if (strcmp(source_type, "stream") == 0) {
         file_cbks = &edgehog_ft_stream_read_cbks;
     } else if (strcmp(source_type, "filesystem") == 0) {
         file_cbks = &edgehog_ft_filesystem_read_cbks;

lib/edgehog_device/file_transfer/upload.c

@@ -30,9 +30,9 @@ typedef struct
     bool progress;
     /** @brief A SHA-256 hash for the file to transfer, prefixed by "sha256:". */
     char *digest;
-    /** @brief Location for the file (storage, streaming, filesystem). */
+    /** @brief Location for the file (streaming, filesystem). */
     char *location_type;
-    /** @brief Location-specific information on how to perform the storage. */
+    /** @brief Location-specific information on how to save the file. */
     char *location;
     /** @brief The type of the message, indicating which payload to read. */
     edgehog_ft_type_t type;