chore(tests): remove unnecessary statements in unit tests for sort component
chore(tests): remove unnecessary statements in unit tests for sort component

when relying on tick to simulate passage of time, we only need
to call fixture.detectChanges() after the tick() statement

patternfly/patternfly-ng,patternfly/patternfly-ng,dlabrecq/patternfly-ng,patternfly/patternfly-ng,dlabrecq/patternfly-ng,dlabrecq/patternfly-ng,dlabrecq/patternfly-ng,patternfly/patternfly-ng