Remove Sapient Guardian provider

[caleblloyd]

Sapient is showing a recommendation for it's users to switch to Pomelo for a MySql provider:

https://github.com/SapientGuardian/SapientGuardian.EntityFrameworkCore.MySql

It also looks like there's not an active maintainer working on a 2.0.0 upgrade:

SapientGuardian/SapientGuardian.EntityFrameworkCore.MySql#56

[dnfclas]

@caleblloyd,
Thanks for your contribution.
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[bradygaster-zz]

⚠️ Validation status: warnings

File	Status	Preview URL	Details
	⚠️Warning		Details
entity-framework/core/providers/sapient-guardian/index.md	✅Succeeded
entity-framework/toc.md	✅Succeeded

• [Warning] The log line content 'W:\l5sz-s.openpublishing.build.ps1' can't be converted to log item. Details: {"message":"Inline code snippet is only allowed inside tables.","source":"Build Document.CompilePhaseHandlerWithIncremental.ConceptualDocumentProcessor.Build.BuildConceptualDocument","file":"entity-framework/64","line":"InvalidInlineCodeSnippet","date_time":"2017-06-13T19:09:36.0432714Z","message_severity":"warning"}
• [Warning] The log line content 'W:\l5sz-s.openpublishing.build.ps1' can't be converted to log item. Details: {"message":"Inline code snippet is only allowed inside tables.","source":"Build Document.CompilePhaseHandlerWithIncremental.ConceptualDocumentProcessor.Build.BuildConceptualDocument","file":"entity-framework/82","line":"InvalidInlineCodeSnippet","date_time":"2017-06-13T19:09:36.262022Z","message_severity":"warning"}
• [Warning] The log line content 'W:\l5sz-s.openpublishing.build.ps1' can't be converted to log item. Details: {"message":"Inline code snippet is only allowed inside tables.","source":"Build Document.CompilePhaseHandlerWithIncremental.ConceptualDocumentProcessor.Build.BuildConceptualDocument","file":"entity-framework/64","line":"InvalidInlineCodeSnippet","date_time":"2017-06-13T19:09:36.2776488Z","message_severity":"warning"}
• [Warning] The log line content 'W:\l5sz-s.openpublishing.build.ps1' can't be converted to log item. Details: {"message":"Inline code snippet is only allowed inside tables.","source":"Build Document.CompilePhaseHandlerWithIncremental.ConceptualDocumentProcessor.Build.BuildConceptualDocument","file":"entity-framework/82","line":"InvalidInlineCodeSnippet","date_time":"2017-06-13T19:09:36.2776488Z","message_severity":"warning"}

For more details, please refer to the build report.

Note: If you changed an existing file name or deleted a file, broken links in other files to the deleted or renamed file are listed only in the full build report.

[caleblloyd]

@SapientGuardian want to check in with you on this first - do you also agree that it would be appropriate to remove the Sapient EF Connector from EF Official Documentation?

[dnfclas]

@caleblloyd, thanks for signing the contribution license agreement. We will now validate the agreement and then the pull request.

Thanks, .NET Foundation Pull Request Bot

[SapientGuardian]

👍 Yes, at this point I don't know of any reason to use it over Pomelo or the official MySql provider.

[yukozh]

@rowanmiller Could you please take a look at this PR?

@SapientGuardian We also hope you can join us to maintain the mysql efcore provider. I've sent you invitation.

[caleblloyd]

Rowan switched off the EF team

Maybe @divega can help?

[divega]

@caleblloyd @kagamine @SapientGuardian sorry for the delayed response and thanks for the fix.

[yukozh]

:)