Revert "Correct a few more links to the samples (main -> live) (#5063)" (#5143)

This reverts commit 3463369.

Author: Youssef1313

entity-framework/core/performance/advanced-performance-topics.md

@@ -89,7 +89,7 @@ When EF receives a LINQ query tree for execution, it must first "compile" that t
 
 However, EF must still perform certain tasks before it can make use of the internal query cache. For example, your query's expression tree must be recursively compared with the expression trees of cached queries, to find the correct cached query. The overhead for this initial processing is negligible in the majority of EF applications, especially when compared to other costs associated with query execution (network I/O, actual query processing and disk I/O at the database...). However, in certain high-performance scenarios it may be desirable to eliminate it.
 
-EF supports *compiled queries*, which allow the explicit compilation of a LINQ query into a .NET delegate. Once this delegate is acquired, it can be invoked directly to execute the query, without providing the LINQ expression tree. This technique bypasses the cache lookup, and provides the most optimized way to execute a query in EF Core. Following are some benchmark results comparing compiled and non-compiled query performance; benchmark on your platform before making any decisions. [The source code is available here](https://github.com/dotnet/EntityFramework.Docs/blob/live/samples/core/Benchmarks/CompiledQueries.cs), feel free to use it as a basis for your own measurements.
+EF supports *compiled queries*, which allow the explicit compilation of a LINQ query into a .NET delegate. Once this delegate is acquired, it can be invoked directly to execute the query, without providing the LINQ expression tree. This technique bypasses the cache lookup, and provides the most optimized way to execute a query in EF Core. Following are some benchmark results comparing compiled and non-compiled query performance; benchmark on your platform before making any decisions. [The source code is available here](https://github.com/dotnet/EntityFramework.Docs/blob/main/samples/core/Benchmarks/CompiledQueries.cs), feel free to use it as a basis for your own measurements.
 
 |               Method | NumBlogs |     Mean |    Error |   StdDev |  Gen 0 | Allocated |
 |--------------------- |--------- |---------:|---------:|---------:|-------:|----------:|

entity-framework/core/testing/testing-with-the-database.md

@@ -9,7 +9,7 @@ uid: core/testing/testing-with-the-database
 
 In this page, we discuss techniques for writing automated tests which involve the database system against which the application runs in production. Alternate testing approaches exist, where the production database system is swapped out by test doubles; see the [testing overview page](xref:core/testing/index) for more information. Note that testing against a different database than what is used in production (e.g. Sqlite) is not covered here, since the different database is used as a test double; this approach is covered in [Testing without your production database system](xref:core/testing/testing-without-the-database).
 
-The main hurdle with testing which involves a real database is to ensure proper test isolation, so that tests running in parallel (or even in serial) don't interfere with each other. The full sample code for the below can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/live/samples/core/Testing/TestingWithTheDatabase).
+The main hurdle with testing which involves a real database is to ensure proper test isolation, so that tests running in parallel (or even in serial) don't interfere with each other. The full sample code for the below can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/main/samples/core/Testing/TestingWithTheDatabase).
 
 > [!TIP]
 > This page shows [xUnit](https://xunit.net/) techniques, but similar concepts exist in other testing frameworks, including [NUnit](https://nunit.org/).
@@ -96,7 +96,7 @@ Finally, we make our test class disposable, arranging for the fixture's `Cleanup
 
 Note that since xUnit only ever instantiates the collection fixture once, there is no need for us to use locking around database creation and seeding as we did above.
 
-The full sample code for the above can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/live/samples/core/Testing/TestingWithTheDatabase/TransactionalBloggingControllerTest.cs).
+The full sample code for the above can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/main/samples/core/Testing/TestingWithTheDatabase/TransactionalBloggingControllerTest.cs).
 
 > [!TIP]
 > If you have multiple test classes with tests which modify the database, you can still run them in parallel by having different fixtures, each referencing its own database. Creating and using many test databases isn't problematic and should be done whenever it's helpful.

entity-framework/core/testing/testing-without-the-database.md

@@ -49,7 +49,7 @@ At this point, your application is architected according to the repository patte
 
 [!code-csharp[Main](../../../samples/core/Testing/TestingWithoutTheDatabase/RepositoryBloggingControllerTest.cs?name=GetBlog)]
 
-The full sample code can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/live/samples/core/Testing/TestingWithoutTheDatabase/RepositoryBloggingControllerTest.cs).
+The full sample code can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/main/samples/core/Testing/TestingWithoutTheDatabase/RepositoryBloggingControllerTest.cs).
 
 ## SQLite in-memory
 
@@ -61,15 +61,15 @@ To use in-memory SQLite, it's important to understand that a **new database is c
 
 Tests can now call `CreateContext`, which returns a context using the connection we set up in the constructor, ensuring we have a clean database with the seeded data.
 
-The full sample code for SQLite in-memory testing can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/live/samples/core/Testing/TestingWithoutTheDatabase/SqliteInMemoryBloggingControllerTest.cs).
+The full sample code for SQLite in-memory testing can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/main/samples/core/Testing/TestingWithoutTheDatabase/SqliteInMemoryBloggingControllerTest.cs).
 
 ## In-memory provider
 
 As discussed in the [testing overview page](xref:core/testing/choosing-a-testing-strategy#inmemory-as-a-database-fake), using the in-memory provider for testing is strongly discouraged; [consider using SQLite instead](#sqlite-in-memory), or [implementing the repository pattern](#repository-pattern). If you've decided to use in-memory, here is a typical test class constructor that sets up and seeds a new in-memory database before each test:
 
 [!code-csharp[Main](../../../samples/core/Testing/TestingWithoutTheDatabase/InMemoryBloggingControllerTest.cs?name=Constructor)]
 
-The full sample code for in-memory testing can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/live/samples/core/Testing/TestingWithoutTheDatabase/InMemoryBloggingControllerTest.cs).
+The full sample code for in-memory testing can be viewed [here](https://github.com/dotnet/EntityFramework.Docs/blob/main/samples/core/Testing/TestingWithoutTheDatabase/InMemoryBloggingControllerTest.cs).
 
 ### In-memory database naming