Fix source IP address

controllers/nginx/pkg/config/config.go

@@ -261,11 +261,6 @@ type Configuration struct {
 	// https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_headers_hash_bucket_size
 	ProxyHeadersHashBucketSize int `json:"proxy-headers-hash-bucket-size,omitempty"`
 
-	// RealClientFrom defines the trusted source of the client source IP address
-	// The valid values are "auto", "http-proxy" and "tcp-proxy"
-	// Default: auto
-	RealClientFrom string `json:"real-client-from,omitempty"`
-
 	// Enables or disables emitting nginx version in error messages and in the “Server” response header field.
 	// http://nginx.org/en/docs/http/ngx_http_core_module.html#server_tokens
 	// Default: true
@@ -479,7 +474,6 @@ func NewDefault() Configuration {
 		LimitConnZoneVariable:        defaultLimitConnZoneVariable,
 		BindAddressIpv4:              defBindAddress,
 		BindAddressIpv6:              defBindAddress,
-		RealClientFrom:               "auto",
 		ZipkinCollectorPort:          9411,
 		ZipkinServiceName:            "nginx",
 	}