block: vhdx - remove redundant comments

Minor cleanup.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: e8718ae3fd3e40a527e46a00e394973fbaab4d53.1418018421.git.jcody@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
diff --git a/block/vhdx.c b/block/vhdx.c
index 12bfe75..f1e1e2e 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -1109,8 +1109,8 @@
             /* check the payload block state */
             switch (s->bat[sinfo.bat_idx] & VHDX_BAT_STATE_BIT_MASK) {
             case PAYLOAD_BLOCK_NOT_PRESENT: /* fall through */
-            case PAYLOAD_BLOCK_UNDEFINED:   /* fall through */
-            case PAYLOAD_BLOCK_UNMAPPED:    /* fall through */
+            case PAYLOAD_BLOCK_UNDEFINED:
+            case PAYLOAD_BLOCK_UNMAPPED:
             case PAYLOAD_BLOCK_ZERO:
                 /* return zero */
                 qemu_iovec_memset(&hd_qiov, 0, 0, sinfo.bytes_avail);
@@ -1280,8 +1280,8 @@
 
                 /* fall through */
             case PAYLOAD_BLOCK_NOT_PRESENT: /* fall through */
-            case PAYLOAD_BLOCK_UNMAPPED:    /* fall through */
-            case PAYLOAD_BLOCK_UNDEFINED:   /* fall through */
+            case PAYLOAD_BLOCK_UNMAPPED:
+            case PAYLOAD_BLOCK_UNDEFINED:
                 bat_prior_offset = sinfo.file_offset;
                 ret = vhdx_allocate_block(bs, s, &sinfo.file_offset);
                 if (ret < 0) {