be2net: remove superfluous externs

This fixes some sparse warnings:
drivers/net/benet/be_cmds.c:1503:12: warning: function
	'be_cmd_enable_magic_wol' with external linkage has definition
drivers/net/benet/be_cmds.c:1668:12: warning: function
	'be_cmd_get_seeprom_data' with external linkage has definition
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Sarveshwar Bandi <sarveshwarb@serverengines.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/benet/be_cmds.c

@@ -1500,7 +1500,7 @@ int be_cmd_get_flash_crc(struct be_adapter *adapter, u8 *flashed_crc,
 	return status;
 }
 
-extern int be_cmd_enable_magic_wol(struct be_adapter *adapter, u8 *mac,
+int be_cmd_enable_magic_wol(struct be_adapter *adapter, u8 *mac,
 				struct be_dma_mem *nonemb_cmd)
 {
 	struct be_mcc_wrb *wrb;
@@ -1665,7 +1665,7 @@ int be_cmd_ddr_dma_test(struct be_adapter *adapter, u64 pattern,
 	return status;
 }
 
-extern int be_cmd_get_seeprom_data(struct be_adapter *adapter,
+int be_cmd_get_seeprom_data(struct be_adapter *adapter,
 				struct be_dma_mem *nonemb_cmd)
 {
 	struct be_mcc_wrb *wrb;