Revert "Propose dpi change"

If people want to switch, they can, but let's leave it stock by default for a more consistent experience.

This reverts commit 6a9bcfce759116a3c7f1dac63ed5252ca4278dbf.

Change-Id: Ic24cd2fc8c07c887df447b8a3bcd049d983dd89f
Merge "Revert "Propose dpi change"" into lp5.0