Full Uninstallation

Step 1. Deactivate the Extension

1.1. If you have SSH access to the server, run the following command:  

php bin/magento module:disable GoMage_Feed

1.2. If you do not have SSH access, log in to the admin panel, go to Stores > Configuration > Advanced > Advanced, choose GoMage_Feed and set the value to Disable. Then save the changes.

The extension is now deactivated.

Step 2. Delete Folder

Using an FTP client delete the following folder:

<your Magento® install dir>/app/code/GoMage/Feed

Step 3. Edit the Config file

Find your <your Magento® install dir>/app/etc/config.php file and open it in a text editor.

Find the following line: 'GoMage_Feed' => 1 and delete it.

Step 4. Delete Data from the Database

Run the following script on your server (MySQL) to delete data from the database:

delete from core_config_data where path like 'gomage_feed/%';
drop table gomage_feed;
drop table gomage_feed_attribute;
delete from setup_module where module = 'GoMage_Feed';

Step 5. Clear Cache

Go to System → Cache Management and clear the store cache.