Description of problem:

Clicking 'Clear' button on 'Import application file' dialog doesn't clear file name .

Version-Release number of selected component (if applicable):

 Upstream

How reproducible:

Always 

Steps to Reproduce:

1.From the 'Migration' perspective, click 'Application inventory'
2. From the top kebab menu, click 'Import'
3. In the 'Import application file' dialog, click 'Browse' to upload a file
4. Once the application file is uploaded, click 'Clear' to clear file name

Actual results: 

Clicking 'Clear' doesn't clear file name while importing apps

Expected results:

Clicking 'Clear' should clear file name while importing apps  

Additional info: