Remove temporary workaround for sass issue #1343

This was introduced in ad752fd7 in order to work around a bug in the
Sass parser that would generate an incorrect source map for interpolated
expressions spanning multiple lines.

Now that the problem has been fixed upstream, we can remove it.

Change-Id: I6f90821d105b7c7f1e7a11bb79a8c6f99fd54e81
Reviewed-on: http://gerrit.causes.com/42832
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>
Remove unnecessary TODO

It's not entirely clear what the action item is for this TODO, so remove
it.

Change-Id: Idf295267ec593b37fae3c6db65044ec26bb2473e
Reviewed-on: http://gerrit.causes.com/42833
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>
Add back ticks to changelog entry

Change-Id: Idcb9d2aae2305c99b53856844414fe3711d2332a
Reviewed-on: http://gerrit.causes.com/42834
Tested-by: jenkins <jenkins@causes.com>
Reviewed-by: Shane da Silva <shane.dasilva@brigade.com>