Flaky TestTickSkip: Remove inherently flaky test (#17504)

Signed-off-by: Rohit Nayak <rohit@planetscale.com>

go/timer/randticker_test.go

@@ -43,21 +43,3 @@ func TestTick(t *testing.T) {
 		t.Error("Channel was not closed")
 	}
 }
-
-func TestTickSkip(t *testing.T) {
-	tkr := NewRandTicker(10*time.Millisecond, 1*time.Millisecond)
-	time.Sleep(35 * time.Millisecond)
-	end := <-tkr.C
-	diff := time.Since(end)
-	if diff < 20*time.Millisecond {
-		t.Errorf("diff: %v, want >20ms", diff)
-	}
-
-	// This tick should be up-to-date
-	end = <-tkr.C
-	diff = time.Since(end)
-	if diff > 1*time.Millisecond {
-		t.Errorf("diff: %v, want <1ms", diff)
-	}
-	tkr.Stop()
-}