target/i386: remove CPUX86State argument from generator functions

CPUX86State argument would only be used to fetch bytes, but that has to be
done before the generator function is called.  So remove it, and all
temptation together with it.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
3 files changed