We don't really need <linux/compiler.h> and <linux/compiler_types.h>. We
already have a mechanism to remove unused macros, so let's do that. We
don't currently have a way to remove unused #includes, so we still need
<linux/compiler.h> and <linux/compiler_types.h> files (but I've clarified
the comments in them).
I've kept the empty definitions of `__user` and `__force` for source
compatibility. (We had one security test at least that was assuming
a kernel struct definition will "just work".)
Bug: http://b/262917450
Test: treehugger
Change-Id: Iacbbbc1aeef9a4fac52dabd7811ab875cc267d4f
Having
WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS
every four lines made the headers harder to read, made the diffs much worse
each time we upgraded, and wasn't really providing any benefit. Before the
next uapi update, let's just stop doing this.
Bug: N/A
Test: builds, manually inspected files look right
Change-Id: Id7088cf750894c9d24950f3d53587fe3156c4f7d