skip duplicate imports

[ralexstokes]

my_kademlia/src/kbucket.rs

Line 3 in 9bd1cff

use std::string::String;

this import is already in the rust "prelude" so you don't need to pull it in yourself

[ralexstokes]

same thing w/ HashMap here:

my_kademlia/src/kbucket.rs

Line 29 in 9bd1cff

store: std::collections::HashMap<Vec<u8>, Vec<u8>>, // Same storage as portal network.

[ralexstokes]

and here:

my_kademlia/src/kbucket.rs

Line 39 in 9bd1cff

store: std::collections::HashMap::new(),

[ralexstokes]

fixed in #7