`std::{begin,end}()` support C-style arrays, thus there is no need for
a second overload. The only reason it is currently needed is that the
trailing return type of the first overload uses `iterable.begin()`, which
leads to a substitution failure, so that overload is not considered.
So remove the array overload, and let CTAD deduce the `Base` template
parameter of `enumerate_adapter`, which will make things work for
arrays as well.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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