In the wc_GeneratePreTBS() method (used for WOLFSSL_DUAL_ALG_CERTS
support), there was a workaround for alt names in certificates, as the
CopyDecodedToX509() method wasn't properly copying them. As a proper
copy mechanism is implemented now, we have to remove the workaround as
it now causes a memory leak of the copied values.
Signed-off-by: Tobias Frauenschläger
<tobias.frauenschlaeger@oth-regensburg.de>