Revert "System: Fastboot: warning fixit, misc bugs and cleanup."

This reverts commit 782111b3bc5d372afc8d66ab6023e834b7c23b88.

Change-Id: Ib66400dfaeef7f01e6461a57b9f09be08de2f1fe
diff --git a/fastboot/fastboot.h b/fastboot/fastboot.h
index 30e79c1..fc5d4f4 100644
--- a/fastboot/fastboot.h
+++ b/fastboot/fastboot.h
@@ -29,7 +29,6 @@
 #ifndef _FASTBOOT_H_
 #define _FASTBOOT_H_
 
-#include <stdlib.h>
 #include "usb.h"
 
 struct sparse_file;
@@ -37,7 +36,7 @@
 /* protocol.c - fastboot protocol */
 int fb_command(usb_handle *usb, const char *cmd);
 int fb_command_response(usb_handle *usb, const char *cmd, char *response);
-int fb_download_data(usb_handle *usb, const void *data, size_t size);
+int fb_download_data(usb_handle *usb, const void *data, unsigned size);
 int fb_download_data_sparse(usb_handle *usb, struct sparse_file *s);
 char *fb_get_error(void);
 
@@ -48,16 +47,16 @@
 int fb_getvar(struct usb_handle *usb, char *response, const char *fmt, ...);
 int fb_format_supported(usb_handle *usb, const char *partition, const char *type_override);
 void fb_queue_flash(const char *ptn, void *data, unsigned sz);
-void fb_queue_flash_sparse(const char *ptn, struct sparse_file *s, size_t sz);
+void fb_queue_flash_sparse(const char *ptn, struct sparse_file *s, unsigned sz);
 void fb_queue_erase(const char *ptn);
 void fb_queue_format(const char *ptn, int skip_if_not_supported, unsigned int max_chunk_sz);
 void fb_queue_require(const char *prod, const char *var, int invert,
         unsigned nvalues, const char **value);
 void fb_queue_display(const char *var, const char *prettyname);
-void fb_queue_query_save(const char *var, char *dest, size_t dest_size);
+void fb_queue_query_save(const char *var, char *dest, unsigned dest_size);
 void fb_queue_reboot(void);
 void fb_queue_command(const char *cmd, const char *msg);
-void fb_queue_download(const char *name, void *data, size_t size);
+void fb_queue_download(const char *name, void *data, unsigned size);
 void fb_queue_notice(const char *notice);
 void fb_queue_wait_for_disconnect(void);
 int fb_execute_queue(usb_handle *usb);