Revert "AAPT: Version <adaptive-icon> to v26"

Bug: 36462965
Bug: 35908647

This reverts commit c7614e5d1e8f9139cccf6ab9b78dda16b98f7656.

Change-Id: I25279e7c53823dad0703c7e2ea8ff91bdbc1a0f2
5 files changed