[LogFS] Remove h_version field

Incompatible change: h_compr is moved up so the padding is all in one chunk.
diff --git a/fs/logfs/logfs_abi.h b/fs/logfs/logfs_abi.h
index 8d4dd3d..d8cc957 100644
--- a/fs/logfs/logfs_abi.h
+++ b/fs/logfs/logfs_abi.h
@@ -422,7 +422,6 @@
  *				not including header
  * @h_datalen:			length of uncompressed data
  * @h_type:			JE type
- * @h_version:			unnormalized version of journal entry
  * @h_compr:			compression type
  * @h_pad:			reserved
  */
@@ -431,9 +430,8 @@
 	__be16	h_len;
 	__be16	h_datalen;
 	__be16	h_type;
-	__be16	h_version;
 	__u8	h_compr;
-	__u8	h_pad[3];
+	__u8	h_pad[5];
 };
 
 SIZE_CHECK(logfs_journal_header, 16);