misc: clippy lint fixes

assembler/src/brainf.rs

@@ -1,9 +1,6 @@
-use std::{
-    fs,
-    path::{self, Path},
-};
+use std::{fs, path::Path};
 
-use common::prelude::{Instruction, Register};
+use common::prelude::*;
 
 use crate::{
     assembler::{
@@ -48,7 +45,7 @@ pub fn parse(src: String) -> Vec<Node> {
 
     let tokens = lex(src);
 
-    let mut id = 0;
+    let _id = 0;
     let mut idstack = Vec::<u32>::new();
 
     nodes.extend(vec![
@@ -290,7 +287,7 @@ fn lex(src: String) -> Vec<BfToken> {
         .collect()
 }
 
-fn create_symbol(id: u32) -> Symbol {
+fn _create_symbol(id: u32) -> Symbol {
     Symbol {
         name: format!("label_{}", id),
         module: Module::Resolved(0),