"Drag and Drop your zip file here" must remove from the "Preview Image" section

[sdgun]

Description

"Drag and Drop your zip file here" must remove from the "Preview Image" section

Steps to Reproduce

• Open the site (https://www.topcoder-dev.com/challenge-details/30049552/?type=design&nocache=true)
• Login as valid user
• Register
• Open the contest page an click 'Submit your entries' button
• (https://www.topcoder-dev.com/challenges/30049552/submit/file/)
• In the Submission/Source/Preview Image boxes;
• Check the "Preview Image" section

Expected Result(s)

• Must display as "Drag and Drop your PNG or JPG file here" in the "Preview Image" section

Actual Result

• "Drag and Drop your zip file here" must remove from the "Preview Image" section

Environment

• Browser(s): Chrome 51.0.2704.106 m
• Operating System: Windows 7 Pro 64bit (SP 1)

Image/Video/JS Log (If not attached, Please check the comments section)

[skyhit]

UI issue.

[mdesiderio]

@parthshah