Holds sw::Profiler that is entirely dead code.
There's little here that looks worthy of keeping. Let's remove it.

Bug: b/153462569
Change-Id: I4330781e8ba362461f164f0a52f764d4fe8f4dc4
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/43574Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Tested-by: Ben Clayton <bclayton@google.com>