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/ext4_common.c b/fs/ext4/ext4_common.c
index f50de7c..ea9b922 100644
--- a/fs/ext4/ext4_common.c
+++ b/fs/ext4/ext4_common.c
@@ -2368,7 +2368,7 @@
 	return -1;
 }
 
-int ext4fs_mount(unsigned part_length)
+int ext4fs_mount(void)
 {
 	struct ext2_data *data;
 	int status;