Running build/strip_cmakelists.sh will attempt to build the CMake
project files with each line that contains a
comment iteratively removed. This allows to minimize the number of
required source files. In particular LLVM is considerably larger than
necessary and will be minimized in the following change.

Bug: b/129772660
Change-Id: I5c062a2643b79ba444b82737f23bc0c104044f07
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/28254Tested-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>