V initialises unused modules

[clubby789]

V version: V 0.2.2 82650ee

What did you do?

module main

import net.http

fn main() {
    println('hi')
}
[ ... ]
v -autofree test.v
valgrind ./test

What did you expect to see? No memory leaks

What did you see instead?

==3818== HEAP SUMMARY:
==3818==     in use at exit: 199 bytes in 7 blocks
==3818==   total heap usage: 4,608 allocs, 4,601 frees, 174,297 bytes allocated

The generated C code contains initialisation blocks for net.openssl, os, net.urllib etc. As well as initialising modules that the compiler recognises as unused, autofree fails to free these allocations.