compat: remove dead NoAutomatic code

compat: remove dead NoAutomatic code

The xkblib spec, table 7.1 (indicators), says:
XkbIM_NoAutomatic: Xkb does not automatically change the value of the
                   indicator based upon a change in the keyboard state,
                   regardless of the values for the other fields of the
                   indicator map.

xkbcomp (the real one) never actually implemented a way for an indicator
statement to set this flag, so it's just dead unused code. We definitely
don't want to implement it ourselves, so remove any mention of it.

Signed-off-by: Ran Benita <ran234@gmail.com>