wldap32: Remove superfluous const in ldap_init declarations.

[Thomas Faber]

On 2015-10-19 12:15, Henri Verbeet wrote:
> On 19 October 2015 at 11:54, Hans Leidekker <hans at codeweavers.com> wrote:
>> I'm not sure that's a reason to differ from the psdk though. Note that
> I can't answer that for you, but personally I'm usually doing the
> reverse. I.e., only matching the PSDK when there's a good reason to.
> Usually that means either things that affect the ABI or things that
> affect the API in a way that would be visible to winelib applications.

Thanks for your reviews!
I do see that my patch created an inconsistency; sending a new version
now.
I'm going with adding the 'const' to the implementation now simply
because it's the smaller change, I'm happy to remove it from both
headers instead if that's the general (or Alexandre's) preference.

Thanks.
-Thomas