remove useless conversions

Author: danieleades

src/cargo/core/compiler/output_depinfo.rs

@@ -84,7 +84,7 @@ fn add_deps_for_unit(
                 // The paths we have saved from the unit are of arbitrary relativeness and may be
                 // relative to the crate root of the dependency.
                 let path = unit.pkg.root().join(path);
-                deps.insert(path.into());
+                deps.insert(path);
             }
         }
     }

src/cargo/core/shell.rs

@@ -457,7 +457,7 @@ mod imp {
             let mut winsize: libc::winsize = mem::zeroed();
             // The .into() here is needed for FreeBSD which defines TIOCGWINSZ
             // as c_uint but ioctl wants c_ulong.
-            if libc::ioctl(libc::STDERR_FILENO, libc::TIOCGWINSZ.into(), &mut winsize) < 0 {
+            if libc::ioctl(libc::STDERR_FILENO, libc::TIOCGWINSZ, &mut winsize) < 0 {
                 return TtyWidth::NoTty;
             }
             if winsize.ws_col > 0 {