It is now just a shell of itself. :)
Also brings in a few fixes to never try to open files from the system
process.
Test: manual
Change-Id: Ia8187196af597046fd2e7092dbf19ce1dc1ea457
Replace some custom rules with BUILD_PREBUILT.
Move tools from ALL_PREBUILTS to BUILD_PREBUILT. All of them are already
in PRODUCT_PACKAGES in build/target/product/base.mk.
Remove uses of ACP and replace with core build system macros or 'cp'
Change-Id: I529e7c6c50fc64ad36b75bb47142f6bde909d141