fix(time): Remove non-functional test causing errors on mac os

There actually is no reason why now being time 0.0 would be incorrect;
it might just mean a low resolution clock is being used.

util/src/time.rs

@@ -39,13 +39,6 @@ mod tests {
     use std::thread::sleep;
     use std::time::Duration;
 
-    #[test]
-    fn test_timebase() {
-        let timebase = Timebase::default();
-        let now = timebase.now();
-        assert!(now > 0.0);
-    }
-
     #[test]
     fn test_timebase_clone() {
         let timebase = Timebase::default();