Adds unused fmt library

[ximyro]

Description

Effe adds the import of fmt library.

Example from tests

package main

import (
	"fmt"
	"net/http"
)

func A(service AService) AFunc {
	return func() (http.Request, error) {
		err := service.Step1()
		if err != nil {
			return http.Request{}, err
		}
		requestVal, err := service.Step2()
		if err != nil {
			return requestVal, err
		}
		return requestVal, nil
	}
}
func NewAImpl() *AImpl {
	return &AImpl{step1FieldFunc: step1(), step2FieldFunc: step2()}
}

type AService interface {
	Step1() error
	Step2() (http.Request, error)
}
type AImpl struct {
	step1FieldFunc func() error
	step2FieldFunc func() (http.Request, error)
}
type AFunc func() (http.Request, error)

func (a *AImpl) Step1() error                 { return a.step1FieldFunc() }
func (a *AImpl) Step2() (http.Request, error) { return a.step2FieldFunc() }

How to resolve it?

Disable adding this library when it's not used.