remove compiler warnings

src/mods/install.rs

@@ -1,6 +1,5 @@
 use crate::mods::strs::{err_unrec, succ};
 use runas::Command;
-use std::fs::File;
 
 pub fn install(noconfirm: bool, as_dep: bool, pkg: &str) { // install a package
     let pkgs: Vec<&str> = pkg.split(" ").collect();

src/mods/purge.rs

@@ -62,8 +62,7 @@ pub fn purge(noconfirm: bool, pkgs: Vec<String>) { // purge packages
 
 pub fn purge_from_file(noconfirm: bool, file: &str) { // purge packages from list of packages
     let mut pkgs: Vec<String> = Vec::new();
-    let mut contents = String::new();
-    contents = std::fs::read_to_string(&file).expect("Couldn't read file");
+    let contents = std::fs::read_to_string(&file).expect("Couldn't read file");
     for line in contents.lines() {
         pkgs.push(line.to_string());
     }

src/mods/uninstall.rs

@@ -61,8 +61,7 @@ pub fn uninstall(noconfirm: bool, pkgs: Vec<String>) { // uninstall a package
 
 pub fn uninstall_from_file(noconfirm: bool, file: &str) { // uninstall a package from a list of packages
     let mut pkgs: Vec<String> = Vec::new();
-    let mut contents = String::new();
-    contents = std::fs::read_to_string(&file).expect("Couldn't read file");
+    let contents = std::fs::read_to_string(&file).expect("Couldn't read file");
     for line in contents.lines() {
         pkgs.push(line.to_string());
     }