Use simpler command in example for building individual coreclr test (#…

…51364)

* Use simpler command in example for building individual coreclr test

* Remove comment about using 'dotnet msbuild'

docs/workflow/testing/coreclr/testing.md

@@ -33,9 +33,9 @@ Note:  CoreCLR must be built prior to building an individual test. See the first
     * It is possible to explicitly run only the native test build with `build.sh/cmd skipmanaged`
 * Managed Test: Invoke `dotnet build` on the project directly. `dotnet` can be the `dotnet.sh` or `dotnet.cmd` script in the repo root.
   ```
-  <runtime-repo-root>/dotnet.sh build <runtime-repo-root>/src/tests/JIT/CodegenBringupTests/Array1_d.csproj /p:Configuration=Release
+  <runtime-repo-root>/dotnet.sh build <runtime-repo-root>/src/tests/<path-to-project> -c <configuration>
   ```
-  * To build managed test projects with dependencies on native test projects, the native test project must first be built. The managed test should then be built using `dotnet build --no-restore` or `dotnet msbuild` to skip restoring.
+  * To build managed test projects with dependencies on native test projects, the native test project must first be built. The managed test should then be built using `dotnet build --no-restore` to skip restoring.
 
 ## Additional Documents