Replace Drupal::service('date.formatter') with $this->dateFormatter in tests

@shreyal999 please be curteous and if someone assigns the issue to themselves then let them work on it, and do not post a patch before they have made theirs.
Thank you
Jonathan (Scheduler maintainer)

Thanks kavbiswa. Just two minor changes required:

1) in tests/src/Functional/SchedulerBasicTest.php

-    // values so that date.formatter can utilise the current users timezone. The
+    // values so that dateFormatter can utilise the current users timezone. The

can you add $this-> in front of dateFormatter

2) in tests/src/Functional/SchedulerTokenReplaceTest.php
instead of

-    $date_formatter = \Drupal::service('date.formatter');
+    $date_formatter = $this->dateFormatter;

just delete that line and use the new object directly in lines 59 and 60.

Thanks.

Thanks kavbiswa, committed and creditted.
I made one small adjustment, to fix the new "line exceeds 80 chars" coding standard fault introduced with the longer comment.

Adding parent