TEST/MINOR: server: remove now omitted arrays from tests

Author: mjuraga

e2e/tests/servers/data/post.json

@@ -3,6 +3,5 @@
   "check": "enabled",
   "name": "test_server",
   "port": 8080,
-  "proxy-v2-options": null,
   "weight": 80
 }

e2e/tests/servers/data/put.json

@@ -1,6 +1,5 @@
 {
   "check": "enabled",
-  "proxy-v2-options": null,
   "weight": 10,
   "address": "10.1.1.2",
   "name": "server_01",

e2e/tests/sites/data/post.json

@@ -8,14 +8,12 @@
       "name": "site_backend",
       "servers": [
         {
-          "proxy-v2-options": null,
           "weight": 30,
           "address": "127.0.1.1",
           "name": "site_server_01",
           "port": 4567
         },
         {
-          "proxy-v2-options": null,
           "weight": 70,
           "address": "127.0.1.2",
           "name": "site_server_02",

e2e/tests/sites/data/put.json

@@ -8,14 +8,12 @@
       "name": "tcp_backend",
       "servers": [
         {
-          "proxy-v2-options": null,
           "weight": 30,
           "address": "127.0.1.1",
           "name": "tcp_server_01",
           "port": 4567
         },
         {
-          "proxy-v2-options": null,
           "weight": 70,
           "address": "127.0.1.2",
           "name": "tcp_server_02",