Revert "PLT-1800 Load server side locale from the config.json (#3076)"

This reverts commit 34beaa569b.

config/config.json

@@ -155,10 +155,5 @@
         "Enable": false,
         "Directory": "./data/",
         "EnableDaily": false
-    },
-    "LocalizationSettings": {
-        "DefaultServerLocale": "en",
-        "DefaultClientLocale": "en",
-        "AvailableLocales": "en,es,fr,ja,pt-BR"
     }
 }