Breakdown CSS: split styling for table inline edits

Removed the nonexistent halflings image reference.  Some inline editing
functionalities are broken after bootstrap patch (not because of this
change!). These issues will be address with another patch.

Change-Id: If349c6e4bd8afeded061a21561ea911bcb472abe
Closes-Bug: #1379519
Partially-Implements: blueprint css-breakdown
Merge "Breakdown CSS: split styling for table inline edits"