bnxt_en: remove set but not used variable 'addr_type'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c: In function 'bnxt_tc_parse_flow':
drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c:186:6: warning:
 variable 'addr_type' set but not used [-Wunused-but-set-variable]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c

@@ -181,7 +181,6 @@ static int bnxt_tc_parse_flow(struct bnxt *bp,
 			      struct bnxt_tc_flow *flow)
 {
 	struct flow_dissector *dissector = tc_flow_cmd->dissector;
-	u16 addr_type = 0;
 
 	/* KEY_CONTROL and KEY_BASIC are needed for forming a meaningful key */
 	if ((dissector->used_keys & BIT(FLOW_DISSECTOR_KEY_CONTROL)) == 0 ||
@@ -191,13 +190,6 @@ static int bnxt_tc_parse_flow(struct bnxt *bp,
 		return -EOPNOTSUPP;
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_CONTROL)) {
-		struct flow_dissector_key_control *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_CONTROL);
-
-		addr_type = key->addr_type;
-	}
-
 	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_BASIC)) {
 		struct flow_dissector_key_basic *key =
 			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_BASIC);
@@ -293,13 +285,6 @@ static int bnxt_tc_parse_flow(struct bnxt *bp,
 		flow->l4_mask.icmp.code = mask->code;
 	}
 
-	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_ENC_CONTROL)) {
-		struct flow_dissector_key_control *key =
-			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_ENC_CONTROL);
-
-		addr_type = key->addr_type;
-	}
-
 	if (dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS)) {
 		struct flow_dissector_key_ipv4_addrs *key =
 			GET_KEY(tc_flow_cmd, FLOW_DISSECTOR_KEY_ENC_IPV4_ADDRS);