RFR: 8316371: Open some swing tests 6 [v2]

[Alisen Chung]

> Opening some closed tests:
> 20 javax/swing/plaf/windows/4736093/bug4736093.java
> 21 javax/swing/table/DefaultTableCellRenderer/4240870/bug4240870.java
> 22 javax/swing/table/JTableHeader/4243927/bug4243927.java
> 23 javax/swing/text/AbstractDocument/4549069/bug4549069.java
> 24 javax/swing/text/AbstractWriter/4185537/bug4185537.java

Alisen Chung has updated the pull request incrementally with one additional commit since the last revision:

  remove unused var

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/15873/files
  - new: https://git.openjdk.org/jdk/pull/15873/files/4bf1fdc7..971b9b9a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=15873&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=15873&range=00-01

  Stats: 5 lines in 1 file changed: 0 ins; 5 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/15873.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15873/head:pull/15873

PR: https://git.openjdk.org/jdk/pull/15873