it would trigger only if the input file name was already absolute,
matched the native path separator, and some (likely) other conditions.
as this behavior was almost unpredictable, it would be not very useful.
so save ourselves the headache and just remove it.
Change-Id: Ic457f487f6d0ce9f7a5f192859c9efa9c2de2b63
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
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