sfc: Remove duplicate definition of efx_xmit_done

It is defined both in efx.h and tx_common.h.
Remove the definition in efx.h.
Signed-off-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/ethernet/sfc/efx.h

@@ -28,7 +28,6 @@ static inline netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct
 			       ef100_enqueue_skb, __efx_enqueue_skb,
 			       tx_queue, skb);
 }
-void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
 void efx_xmit_done_single(struct efx_tx_queue *tx_queue);
 int efx_setup_tc(struct net_device *net_dev, enum tc_setup_type type,
 		 void *type_data);

drivers/net/ethernet/sfc/farch.c

@@ -16,6 +16,7 @@
 #include "bitfield.h"
 #include "efx.h"
 #include "rx_common.h"
+#include "tx_common.h"
 #include "nic.h"
 #include "farch_regs.h"
 #include "sriov.h"