Removed uneeded cast operators

JsonParser/JsonValue.cpp

@@ -52,14 +52,4 @@ JsonValue::operator long()
 JsonValue::operator char*()
 {
     return isString() || isPrimitive() ? getText() : 0;
-}
-
-JsonValue::operator JsonArray()
-{
-    return *this;
-}
-
-JsonValue::operator JsonObject()
-{
-    return *this;
 }

JsonParser/JsonValue.h

@@ -48,8 +48,6 @@ namespace ArduinoJson
             operator double();
             operator long();
             operator char*();
-            operator JsonArray();
-            operator JsonObject();
             JsonValue operator[](int index);
             JsonValue operator[](const char*key);
         };