Revert "Strings: hardcode "\n" as the line separator"

This reverts commit 7ddf37c01b68ff9d2de3a9dcb637d2b962b442ef.

Not needed anymore because of:
d4fa9f4ddc1c1f193b623c8da80384b4c510a1b4

(cherry picked from commit cf7021d93b868e5f72781d0f49b56447fc226639)

Bug: 27265238
Bug: 28108158
Bug: 28174137
Change-Id: I0568d42102af1d3ba55cc4b83664cf6b6805a96f
1 file changed