[REF] remove paths from RootSymbol

The `paths` field in `RootSymbol` has no purpose and is always an empty
vector.

Author: cammarosano

server/src/core/symbols/root_symbol.rs

@@ -7,7 +7,6 @@ use super::symbol::Symbol;
 pub struct RootSymbol {
     pub name: OYarn,
     pub entry_point: Option<Rc<RefCell<EntryPoint>>>,
-    pub paths: Vec<String>,
     pub weak_self: Option<Weak<RefCell<Symbol>>>,
     pub parent: Option<Weak<RefCell<Symbol>>>,
     pub module_symbols: HashMap<OYarn, Rc<RefCell<Symbol>>>,
@@ -18,7 +17,6 @@ impl RootSymbol {
     pub fn new() -> Self {
         Self {
             name: oyarn!("Root"),
-            paths: vec![],
             weak_self: None,
             entry_point: None,
             parent: None,

server/src/core/symbols/symbol.rs

@@ -844,7 +844,7 @@ impl Symbol {
 
     pub fn paths(&self) -> Vec<String> {
         match self {
-            Symbol::Root(r) => r.paths.clone(),
+            Symbol::Root(_) => vec![],
             Symbol::Namespace(n) => n.paths(),
             Symbol::DiskDir(d) => vec![d.path.clone()],
             Symbol::Package(p) => p.paths(),
@@ -859,7 +859,7 @@ impl Symbol {
     }
     pub fn add_path(&mut self, path: String) {
         match self {
-            Symbol::Root(r) => r.paths.push(path),
+            Symbol::Root(_) => {},
             Symbol::Namespace(n) => {
                 n.directories.push(NamespaceDirectory { path: path, module_symbols: HashMap::new() });
             },