Remove publish browser script

[shuse2]

Description

npm publish fails with sh: ./scripts/publish_browser.sh: No such file or directory,
the script and package.json setting was deleted pre 1.0, but came back with the merge mistake at some point.

Expected behavior

It should not fail in npm publish process

Actual behavior

npm publish fails with sh: ./scripts/publish_browser.sh: No such file or directory

Which version(s) does this affect? (Environment, OS, etc...)

1.1-