Remove unused sector count

x86_64/partitions.asm

@@ -11,7 +11,6 @@ endstruc
 ; The partition has to be one of the primary MBR partitions.
 ; OUT
 ;   eax - start_lba
-;   edx - sector count
 ; CLOBBER
 ;   ebx
 find_redoxfs_partition:
@@ -26,7 +25,6 @@ find_redoxfs_partition:
     jmp .notfound
 .found:
     mov eax, [partitions + mbr_partition_rec + mbr_partition_rec.lba_start]
-    mov edx, [partitions + mbr_partition_rec + mbr_partition_rec.sector_count]
     ret
 .notfound:
     mov si, .no_partition_found_msg

x86_64/redoxfs.asm

@@ -41,10 +41,8 @@ endstruc
 
 ; IN
 ; eax - the first sector of the filesystem
-; edx - the amount of sectors in the filesystem
 redoxfs:
         mov [.first_sector], eax
-        mov [.sector_count], ebx
         call redoxfs.open
         test eax, eax
         jz .good_header
@@ -79,7 +77,6 @@ redoxfs:
         times BLOCK_SIZE db 0
 
     .first_sector: dd 0
-    .sector_count: dd 0
 
     .env:
         db "REDOXFS_BLOCK="

x86_64/startup-common.asm

@@ -28,7 +28,6 @@ startup:
 
         %ifdef FILESYSTEM
             mov eax, (filesystem - boot) / 512
-            mov ebx, (filesystem.end - filesystem) / 512
         %else
             call find_redoxfs_partition
         %endif