[DOCS] http -> https, remove outdated plugin docs (#60380)

Plugin discovery documentation contained information about installing
Elasticsearch 2.0 and installing an oracle JDK, both of which is no
longer valid.

While noticing that the instructions used cleartext HTTP to install
packages, this commit replaces HTTPs links instead of HTTP where possible.

In addition a few community links have been removed, as they do not seem
to exist anymore.
This commit is contained in:
Alexander Reelsen 2020-07-31 21:58:38 +02:00 committed by GitHub
parent 947186719e
commit c7ac9e7073
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80 changed files with 188 additions and 242 deletions

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@ -93,7 +93,7 @@ To install a plugin from an HTTP URL:
+
[source,shell]
-----------------------------------
sudo bin/elasticsearch-plugin install http://some.domain/path/to/plugin.zip
sudo bin/elasticsearch-plugin install https://some.domain/path/to/plugin.zip
-----------------------------------
+
The plugin script will refuse to talk to an HTTPS URL with an untrusted