qcow2: Remove forward declaration of QCowAIOCB
This struct doesn't exist any more since commit 3fc48d09 in August 2011,
it's about time to remove its forward declaration.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
diff --git a/block/qcow2.h b/block/qcow2.h
index d700bf1..3512263 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -295,8 +295,6 @@
char *image_backing_format;
} BDRVQcow2State;
-struct QCowAIOCB;
-
typedef struct Qcow2COWRegion {
/**
* Offset of the COW region in bytes from the start of the first cluster
