remove unused code

example/to_wendelin.conf

-[INPUT]
-    Name  dummy
-    Tag   dummy
-
-[OUTPUT]
-    Name  wendelin_out
-    Match *
-    User <your_wendelin_user>
-    Password <your_wendelin_password>
-    Uri   <Wendelin_URL>/erp5/portal_ingestion_policies/<YOUR_INGESTION_POLICY_ID>
-    Reference <input_stream_reference>
-

out_http.go

-package main
-
-import "github.com/fluent/fluent-bit-go/output"
-import (
-	"C"
-	"bytes"
-	"fmt"
-	"net/http"
-	"regexp"
-	"strconv"
-	"unsafe"
-)
-
-// configuration parameters
-var user string
-var password string
-var uri string
-var reference string
-
-//export FLBPluginRegister
-func FLBPluginRegister(ctx unsafe.Pointer) int {
-	return output.FLBPluginRegister(ctx, "wendelin_out", "Wendelin Out GO!")
-}
-
-//export FLBPluginInit
-// (fluentbit will call this)
-// ctx (context) pointer to fluentbit context (state/ c code)
-func FLBPluginInit(ctx unsafe.Pointer) int {
-	// Example to retrieve an optional configuration parameter
-	//	param := output.FLBPluginConfigKey(ctx, "param")
-	user = output.FLBPluginConfigKey(ctx, "User")
-	password = output.FLBPluginConfigKey(ctx, "Password")
-	uri = output.FLBPluginConfigKey(ctx, "Uri")
-	reference = output.FLBPluginConfigKey(ctx, "Reference")
-
-	//fmt.Printf("[flb-go] plugin parameter = '%s'\n", param)
-	fmt.Printf("[flb-go user] plugin parameter = '%s'\n", user)
-	fmt.Printf("[flb-go password] plugin parameter = '%s'\n", password)
-	fmt.Printf("[flb-go uri] plugin parameter = '%s'\n", uri)
-	fmt.Printf("[flb-go reference] plugin parameter = '%s'\n", reference)
-
-	return output.FLB_OK
-}
-
-//export FLBPluginFlush
-func FLBPluginFlush(data unsafe.Pointer, length C.int, tag *C.char) int {
-
-	request_string := uri + "/ingest?reference=" + reference
-	var b []byte
-	b = C.GoBytes(data, C.int(length))
-
-	hc := http.Client{}
-
-	req, err := http.NewRequest("POST", request_string, bytes.NewBuffer(b))
-
-	if err != nil {
-		return output.FLB_ERROR
-	}
-
-	req.Header.Set("Content-Type", "application/octet-stream")
-	req.SetBasicAuth(user, password)
-
-	resp, err := hc.Do(req)
-
-	if err != nil {
-		return output.FLB_ERROR
-	}
-
-	/*
-	 * Only allow the following HTTP status:
-	 *
-	 *  - 200: OK
-	 *  - 201: Created
-	 *  - 202: Accepted
-	 *  - 203: no authorative resp
-	 *  - 204: No Content
-	 *  - 205: Reset content
-	 */
-	re := regexp.MustCompile("[0-9]+") // get only the status code
-	status_code := re.FindAllString(resp.Status, -1)
-	resp_status, err := strconv.Atoi(status_code[0])
-	if err != nil {
-		fmt.Println(err)
-		return output.FLB_RETRY
-	}
-
-	fmt.Println(resp.Status)
-	fmt.Println(err)
-
-	if resp_status < 200 && resp_status > 205 {
-		return output.FLB_RETRY
-	}
-
-	defer resp.Body.Close()
-
-	/*
-	 * Return options:
-	 *
-	 * - output.FLB_OK    = data have been processed.
-	 * - output.FLB_ERROR = unrecoverable error, do not try this again.
-	 * - output.FLB_RETRY = retry to flush later.
-	 */
-	return output.FLB_OK
-}
-
-//export FLBPluginExit
-func FLBPluginExit() int {
-	return output.FLB_OK
-}
-
-func main() {
-}