fix - remove unnecessary deserialization in codefresh_user activation (#166)

## What

## Why

## Notes
<!-- Add any notes here -->

## Checklist

* [ ] _I have read
[CONTRIBUTING.md](https://github.com/codefresh-io/terraform-provider-codefresh/blob/master/CONTRIBUTING.md)._
* [ ] _I have [allowed changes to my fork to be
made](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/allowing-changes-to-a-pull-request-branch-created-from-a-fork)._
* [ ] _I have added tests, assuming new tests are warranted_.
* [ ] _I understand that the `/test` comment will be ignored by the CI
trigger [unless it is made by a repo admin or
collaborator](https://codefresh.io/docs/docs/pipelines/triggers/git-triggers/#support-for-building-pull-requests-from-forks)._

Author: ilia-medvedev-codefresh

codefresh/cfclient/api_key.go

@@ -347,7 +347,8 @@ func (client *Client) createRandomUser(accountId string) (string, error) {
 	userID := user.ID
 
 	// activate
-	_, err = client.ActivateUser(userID)
+	err = client.ActivateUser(userID)
+
 	if err != nil {
 		return "", err
 	}

codefresh/cfclient/user.go

@@ -166,27 +166,20 @@ func (client *Client) AddUserToTeamByAdmin(userID string, accountID string, team
 	return err
 }
 
-func (client *Client) ActivateUser(userId string) (*User, error) {
+func (client *Client) ActivateUser(userId string) error {
 
 	opts := RequestOptions{
 		Path:   fmt.Sprintf("/admin/user/%s/activate", userId),
 		Method: "POST",
 	}
 
-	resp, err := client.RequestAPI(&opts)
-
-	if err != nil {
-		return nil, err
-	}
-
-	var user User
+	_, err := client.RequestAPI(&opts)
 
-	err = DecodeResponseInto(resp, &user)
 	if err != nil {
-		return nil, err
+		return err
 	}
 
-	return &user, nil
+	return nil
 }
 
 func (client *Client) SetUserAsAccountAdmin(accountId, userId string) error {

codefresh/resource_account_user_association_test.go

@@ -24,7 +24,8 @@ func testAccCodefreshActivateUser(s *terraform.State, email string) error {
 	}
 	for _, user := range currentAccount.Users {
 		if user.Email == email {
-			_, err = c.ActivateUser(user.ID)
+			err = c.ActivateUser(user.ID)
+
 			if err != nil {
 				return fmt.Errorf("failed to activate user: %s", err)
 			}

codefresh/resource_user.go

@@ -157,7 +157,7 @@ func resourceUsersCreate(d *schema.ResourceData, meta interface{}) error {
 	}
 
 	if d.Get("activate").(bool) {
-		_, err := client.ActivateUser(d.Id())
+		err := client.ActivateUser(d.Id())
 
 		if err != nil {
 			return err