remove local tz test

This was breaking some of the unit tests when they happened to
complete in a particular order

rslib/src/scheduler/cutoff.rs

@@ -213,16 +213,6 @@ mod test {
         today.days_elapsed
     }
 
-    #[test]
-    #[cfg(target_vendor = "apple")]
-    /// On Linux, TZ needs to be set prior to the process being started to take effect,
-    /// so we limit this test to Macs.
-    fn local_minutes_west() {
-        // -480 throughout the year
-        std::env::set_var("TZ", "Australia/Perth");
-        assert_eq!(local_minutes_west_for_stamp(Utc::now().timestamp()), -480);
-    }
-
     #[test]
     fn days_elapsed() {
         let local_offset = local_minutes_west_for_stamp(Utc::now().timestamp());