revert
a057427e02b14f2f7851
Added code to disable save button if no text is present in name or number field
Currently if some text is first typed in any of the fields then save button
gets enabled. But when all text is deleted from field, save button is not
disabled.
Added code to enable/disable properly.
BUG=446760
Review URL: https://codereview.chromium.org/
837613003
It created a new bug, http://crbug.com/453568, and the original issue it solved is not worth fixing.
BUG=453568,446760
Review URL: https://codereview.chromium.org/
895433005
Cr-Commit-Position: refs/heads/master@{#314935}