BUG/MINOR: lib: don't force response code to 406 (#187)

In 4006a6c (BUG/MINOR: do not set default response code) the default to
406 was removed from rules without response codes. However, the provider
was still forcing a 406 default behind the scenes causing rules without
response codes to be recreated with 406 with every new plan apply.

This commit stops forcing the HTTP status code 406 on rules and fixes
the issue with rules that have not had changes happen from being
recreated.

provider/lib.go

@@ -2,7 +2,6 @@ package provider
 
 import (
 	"fmt"
-	"net/http"
 	"sort"
 	"strconv"
 	"strings"
@@ -494,11 +493,6 @@ func flattenRuleActions(actions []sigsci.Action, customResponseCode bool) []inte
 		if customResponseCode {
 			// response code is set to 0 by sigsci api when action.type != "block"
 			// for types such as "allow" or "logRequest", response code is irrelevant and hence not provided in API response
-			// TF assigns default value of 0 which creates an issues when checking TF plan because we set default value of 406 (http.StatusNotAcceptable)
-			// This noop piece of code ensures tests pass as expected
-			if action.ResponseCode == 0 {
-				action.ResponseCode = http.StatusNotAcceptable
-			}
 			actionMap["response_code"] = action.ResponseCode
 		}
 		actionsMap[i] = actionMap