fastboot: sparse: remove session-id logic

This "session-id" alogrithm is not required, and currently corrupts
the stored image whenever more the one "session" is required.

Signed-off-by: Steve Rae <srae@broadcom.com>
diff --git a/include/fb_nand.h b/include/fb_nand.h
index 80ddef5..88bdf36 100644
--- a/include/fb_nand.h
+++ b/include/fb_nand.h
@@ -5,7 +5,6 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-void fb_nand_flash_write(const char *cmd, unsigned int session_id,
-			 void *download_buffer, unsigned int download_bytes,
-			 char *response);
+void fb_nand_flash_write(const char *cmd, void *download_buffer,
+			 unsigned int download_bytes, char *response);
 void fb_nand_erase(const char *cmd, char *response);