Support building with GNU make 4.0

* It works just fine, no need for the warning.

Change-Id: Ifa2ab17454edfcd8b7840a7534f70576286f2864
Merge "Support building with GNU make 4.0" into kitkat
Revert "build: Add installer persistence support [1/3]"

This reverts commit bd2e2e02aef94c3d705171a9581ba7875f7ad09d.

Change-Id: I752c683686d56a0f793b26569d03328ff3800159
Merge branch 'kitkat' of https://github.com/AOKP/build into kitkat