Revert "Setting PLATFORM_VERSION(_CODENAME)? to NMR1"

This reverts commit 439971af5d63b1c5175f14f15f99394a95e34496.

Bug: 28713307
Bug: 28817009
Change-Id: I96c9ec9e3f1be6d68eb77df596707568e344a2fc
1 file changed