fix: remove all unused code (#12360)

cmd/test-utils_test.go

@@ -78,8 +78,6 @@ func TestMain(m *testing.M) {
 		SecretKey: auth.DefaultSecretKey,
 	}
 
-	globalConfigEncrypted = true
-
 	// disable ENVs which interfere with tests.
 	for _, env := range []string{
 		crypto.EnvKMSAutoEncryption,
@@ -1278,35 +1276,6 @@ func getRandomBucketName() string {
 
 }
 
-// NewEOFWriter returns a Writer that writes to w,
-// but returns EOF error after writing n bytes.
-func NewEOFWriter(w io.Writer, n int64) io.Writer {
-	return &EOFWriter{w, n}
-}
-
-type EOFWriter struct {
-	w io.Writer
-	n int64
-}
-
-// io.Writer implementation designed to error out with io.EOF after reading `n` bytes.
-func (t *EOFWriter) Write(p []byte) (n int, err error) {
-	if t.n <= 0 {
-		return -1, io.EOF
-	}
-	// real write
-	n = len(p)
-	if int64(n) > t.n {
-		n = int(t.n)
-	}
-	n, err = t.w.Write(p[0:n])
-	t.n -= int64(n)
-	if err == nil {
-		n = len(p)
-	}
-	return
-}
-
 // construct URL for http requests for bucket operations.
 func makeTestTargetURL(endPoint, bucketName, objectName string, queryValues url.Values) string {
 	urlStr := endPoint + SlashSeparator