Delete duplicate code in demos/browser/server.js file

[dahae0320]

Issue #: N/A

Description of changes:
Delete duplicate else-if statements in demo app, server.js file. (pathname: end)

• Duplicate code locations: demos/browser/server.js
  • lines 209 to 214, lines 311 to 315

Testing:

Can these tested using a demo application? Please provide reproducible step-by-step instructions.
No.

Checklist:

1. Have you successfully run npm run build:release locally?
   y

2. Do you add, modify, or delete public API definitions? If yes, has that been reviewed and approved?
   n

3. Do you change the wire protocol, e.g. the request method? If yes, has that been reviewed and approved?
   n

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[hensmi-amazon]

unfortunately our integration tests do not work with external forks. I will move it to a remote branch when i get a chance

[dahae0320]

unfortunately our integration tests do not work with external forks. I will move it to a remote branch when i get a chance

Oh... I'd really appreciate it if you could move it to a remote branch. Thank you so much your comment!

[hensmi-amazon]

Opened #2903 because github doesn't seem to allow me to change the remote branch here.

[dahae0320]

Thanks :)