[SR-Dev] Patch: remove VQ_MALLOC memory manager

Hi, attached patch removes the VQ_MALLOC memory manager from the sip-router core. As discussed some time ago, this memory manager don't provide a realloc implementation, and is thus not really usable for the modules, as some of them needs this. We removed this in kamailio in the last year, so far nobody missed it. Removing this memory manager is in my opinion a good cleanup, and also make the synchronisation of this MM implementations with the ones in the kamailio core easier. Cheers, Henning