Delete unnecessary command

src/bootstrap/tool.rs

@@ -268,10 +268,6 @@ macro_rules! bootstrap_tool {
  }
 
  impl Tool {
- pub fn get_mode(&self) -> Mode {
- Mode::ToolBootstrap
- }
-
  /// Whether this tool requires LLVM to run
  pub fn uses_llvm_tools(&self) -> bool {
  match self {
@@ -659,23 +655,23 @@ impl<'a> Builder<'a> {
  pub fn tool_cmd(&self, tool: Tool) -> Command {
  let mut cmd = Command::new(self.tool_exe(tool));
  let compiler = self.compiler(0, self.config.build);
- self.prepare_tool_cmd(compiler, tool, &mut cmd);
+ self.prepare_tool_cmd(compiler, &mut cmd);
  cmd
  }
 
  /// Prepares the `cmd` provided to be able to run the `compiler` provided.
  ///
  /// Notably this munges the dynamic library lookup path to point to the
  /// right location to run `compiler`.
- fn prepare_tool_cmd(&self, compiler: Compiler, tool: Tool, cmd: &mut Command) {
+ fn prepare_tool_cmd(&self, compiler: Compiler, cmd: &mut Command) {
  let host = &compiler.host;
  let mut lib_paths: Vec<PathBuf> = vec![
  if compiler.stage == 0 {
  self.build.rustc_snapshot_libdir()
  } else {
  PathBuf::from(&self.sysroot_libdir(compiler, compiler.host))
  },
- self.cargo_out(compiler, tool.get_mode(), *host).join("deps"),
+ self.cargo_out(compiler, Mode::ToolBootstrap, *host).join("deps"),
  ];
 
  // On MSVC a tool may invoke a C compiler (e.g., compiletest in run-make