for initialization: delete unused initialization wires when leaving scope
for initialization: delete unused initialization wires when leaving scope

This fixes latch inferred error when for is used in always_comb block

Signed-off-by: Kamil Rakoczy <539d6a2650324aa9156edbbb09228193dfee5b9b@antmicro.com>

antmicro/yosys,antmicro/yosys,antmicro/yosys,antmicro/yosys,antmicro/yosys,antmicro/yosys,antmicro/yosys,antmicro/yosys