i40e: remove I40E_FLAG_IN_NETPOLL entirely

This flag was originally intended to be used to let some
driver code know when we were running from netpoll.
Ultimately this was not necessary and we never used it.
Let's remove it

Change-ID: I43b72483d91c1638071d2a7f389ab171ec5b796a
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40evf/i40evf.h

@@ -202,7 +202,6 @@ struct i40evf_adapter {
 
 	u32 flags;
 #define I40EVF_FLAG_RX_CSUM_ENABLED		BIT(0)
-#define I40EVF_FLAG_IN_NETPOLL			BIT(4)
 #define I40EVF_FLAG_IMIR_ENABLED		BIT(5)
 #define I40EVF_FLAG_MQ_CAPABLE			BIT(6)
 #define I40EVF_FLAG_PF_COMMS_FAILED		BIT(8)
@@ -221,7 +220,6 @@ struct i40evf_adapter {
 /* duplicates for common code */
 #define I40E_FLAG_FDIR_ATR_ENABLED		0
 #define I40E_FLAG_DCB_ENABLED			0
-#define I40E_FLAG_IN_NETPOLL			I40EVF_FLAG_IN_NETPOLL
 #define I40E_FLAG_RX_CSUM_ENABLED		I40EVF_FLAG_RX_CSUM_ENABLED
 #define I40E_FLAG_WB_ON_ITR_CAPABLE		I40EVF_FLAG_WB_ON_ITR_CAPABLE
 #define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE	I40EVF_FLAG_OUTER_UDP_CSUM_CAPABLE