Get rid of statik and fix failing tests

cmd/pluginator/internal/krmfunction/converter.go

@@ -6,17 +6,18 @@ package krmfunction
 import (
 	"bufio"
 	"bytes"
+	"embed"
 	"fmt"
 	"io"
 	"os"
 	"path/filepath"
 	"strings"
-
-	"github.com/rakyll/statik/fs"
-	// load embedded func wrapper
-	_ "sigs.k8s.io/kustomize/cmd/pluginator/v2/internal/krmfunction/funcwrapper"
 )
 
+//go:embed funcwrappersrc/go.mod.src
+//go:embed funcwrappersrc/main.go
+var fs embed.FS
+
 // Converter is a converter to convert the
 // plugin file to KRM function
 type Converter struct {
@@ -122,11 +123,7 @@ func (c *Converter) prepareWrapper(content string) string {
 // readEmbeddedFile read the file from embedded files with filename
 // name. Return the file content if it's successful.
 func (c *Converter) readEmbeddedFile(name string) (string, error) {
-	statikFS, err := fs.New()
-	if err != nil {
-		return "", err
-	}
-	r, err := statikFS.Open("/" + name)
+	r, err := fs.Open("funcwrappersrc/" + name)
 	if err != nil {
 		return "", err
 	}