staging: kpc2000: remove unnecessary assertions in kpc_dma_transfer

In kpc_dma_transfer(), the assertion that priv is NULL and priv->ldev
is NULL, are never satisfied. The two callers of the function,
dereference the fields before the function is called. This patch
removes the two BUG_ON calls.
Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Link: https://lore.kernel.org/r/20191219172118.17456-1-pakki001@umn.eduSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/kpc2000/kpc_dma/fileops.c

@@ -49,9 +49,7 @@ static int kpc_dma_transfer(struct dev_private_data *priv,
 	u64 dma_addr;
 	u64 user_ctl;
 
-	BUG_ON(priv == NULL);
 	ldev = priv->ldev;
-	BUG_ON(ldev == NULL);
 
 	acd = kzalloc(sizeof(*acd), GFP_KERNEL);
 	if (!acd) {