revert [jit] Disable fastmem (by default) on FreeBSD, Solaris and OpenBSD due to subpar timings of SIGSEGV (#319)
According to MaranBR, this should have never been merged and should have been closed instead as they iterated on it in 324.
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/319
Reviewed-by: Shinmegumi <shinmegumi@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/331
Co-authored-by: Shinmegumi <shinmegumi@eden-emu.dev>
Co-committed-by: Shinmegumi <shinmegumi@eden-emu.dev>