[jdk11u-dev] RFR: 8221871: javadoc should not set role=region on <section> elements [v2]

[psoujany]

> Backport javadoc should not set role=region on <section> elements. 
> 
> The bug report for the same : https://bugs.openjdk.org/browse/JDK-8221871

psoujany has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  Backport 0abdc381b72f9dca86ac8f9c8943980eda7fd853

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Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/1219/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/1219/files/6b2713df..8f070b15

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1219&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1219&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1219.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1219/head:pull/1219

PR: https://git.openjdk.org/jdk11u-dev/pull/1219