fs: ext4: Remove unused parameter from ext4_mount

The part_length parameter is not used. Remove it.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
diff --git a/fs/ext4/ext4fs.c b/fs/ext4/ext4fs.c
index 4c89152..3b12ec5 100644
--- a/fs/ext4/ext4fs.c
+++ b/fs/ext4/ext4fs.c
@@ -233,7 +233,7 @@
 {
 	ext4fs_set_blk_dev(fs_dev_desc, fs_partition);
 
-	if (!ext4fs_mount(fs_partition->size)) {
+	if (!ext4fs_mount()) {
 		ext4fs_close();
 		return -1;
 	}