Nuke vulkan-cereal for move to hardware/google/gfxstream

Bug: b/271464937
Test: presubmit
Change-Id: I5856d839010daa681a326cb74d629aeb3148add2
1361 files changed
tree: 2b8c34ba4d4cc7698fc4e9a61434512fe35bdc02
  1. .clang-format
  2. .gitignore