Follow-up to bcb3d2f5122276ed9969fe2b2ef4428652800377. Even though 32-bit win/asan is not well supported, we shouldn't drop it without some discussion at least. Also, we probably shouldn't drop the other sanitizers that are gated by COMPILER_RT_BUILD_SANITIZERS. The tests no longer pass after switching to the runtimes build however (I believe that build mode runs more of the tests?), so disable them.