Remove duplication description on document

[adonaiohesed]

Remove duplication description of ClientCertificate.

[codebrain]

@adonaiohesed - thanks for your commit.

In order to accept this commit we ask that you sign our CLA:
https://www.elastic.co/contributor-agreement

Please also note that the file you are editing is generated from a C# file as per the file header:

////
IMPORTANT NOTE
==============
This file has been generated from https://github.com/elastic/elasticsearch-net/tree/6.x/src/Tests/Tests/ClientConcepts/Connection/ConfigurationOptions.doc.cs. 
If you wish to submit a PR for any spelling mistakes, typos or grammatical errors for this file,
please modify the original csharp file found at the link and submit the PR with that change. Thanks!
////

Could you please include the change to this file as well?

Thanks!

[russcam]

I think the change to remove the duplication is more involved. The two headers relate to the following two methods:

elasticsearch-net/src/Elasticsearch.Net/Configuration/ConnectionConfiguration.cs

Lines 484 to 496 in 6521087

	/// <summary>
	/// Use the following certificate to authenticate all HTTP requests. You can also set them on individual
	/// request using <see cref="RequestConfiguration.ClientCertificates" />
	/// </summary>
	public T ClientCertificate(X509Certificate certificate) =>
	Assign(new X509Certificate2Collection { certificate }, (a, v) => a._clientCertificates = v);
	/// <summary>
	/// Use the following certificate to authenticate all HTTP requests. You can also set them on individual
	/// request using <see cref="RequestConfiguration.ClientCertificates" />
	/// </summary>
	public T ClientCertificate(string certificatePath) =>
	Assign(new X509Certificate2Collection { new X509Certificate(certificatePath) }, (a, v) => a._clientCertificates = v);

The method parameters are not currently included in the documentation, but we could consider adding them to disambiguate?

[adonaiohesed]

It is my honor to take part in the elastic community. I agree with Russ Cam's opinion and it is hard to find a change to edit in a file ` https://github.com/elastic/elasticsearch-net/tree/6.x/src/Tests/Tests/ClientConcepts/Connection/ConfigurationOptions.doc.cs `. Thank you! 2019년 5월 7일 (화) 오전 11:00, Russ Cam <notifications@github.com>님이 작성:

…

I think the change to remove the duplication is more involved. The two headers relate to the following two methods: https://github.com/elastic/elasticsearch-net/blob/652108717722dcfc5ef530f5f3708838f659dbc8/src/Elasticsearch.Net/Configuration/ConnectionConfiguration.cs#L484-L496 The method parameters are not currently included in the documentation, but we could consider adding them to disambiguate? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#3713 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ALKZ57RR32TVNHBCFIID7L3PUDPFTANCNFSM4HKPP53Q> .

[codebrain]

Closed this PR and submitted 39cb86a with the change.

Credited the original author, thanks again @adonaiohesed

[codebrain]

Ported to master and 7.x