Stop using time@0.1 in Servo (#33394)

This removes the last few uses of `time@0.1` in Servo. There are still
dependencies from `style` and `webrender`, but they will be removed soon
as well. The uses of this version of `time` are replaced with
`std::time` types and `time@0.3` when negative `Duration` is necessary.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

components/shared/base/cross_process_instant.rs

@@ -61,6 +61,16 @@ impl Add<Duration> for CrossProcessInstant {
     }
 }
 
+impl Sub<Duration> for CrossProcessInstant {
+    type Output = Self;
+
+    fn sub(self, rhs: Duration) -> Self::Output {
+        Self {
+            value: self.value - rhs.whole_nanoseconds() as u64,
+        }
+    }
+}
+
 #[cfg(all(unix, not(any(target_os = "macos", target_os = "ios"))))]
 mod platform {
     use libc::timespec;