Default use_tint_generator to on for D3D12

Most tests pass, those that don't are skipped.

Change-Id: Ia08373551a48382aceffbbc0e23bd15828ebe219
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/46452
Commit-Queue: Austin Eng <enga@chromium.org>
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
diff --git a/src/tests/DawnTest.cpp b/src/tests/DawnTest.cpp
index b6ac837..7bf2825 100644
--- a/src/tests/DawnTest.cpp
+++ b/src/tests/DawnTest.cpp
@@ -536,6 +536,7 @@
                 // test skips on all backends, we can remove this and use a test suite with
                 // use_tint_generator in the command line args instead.
                 if (params[i].backendType == wgpu::BackendType::Vulkan ||
+                    params[i].backendType == wgpu::BackendType::D3D12 ||
                     params[i].backendType == wgpu::BackendType::OpenGL ||
                     params[i].backendType == wgpu::BackendType::OpenGLES) {
                     BackendTestConfig configWithTint = params[i];
diff --git a/src/tests/end2end/EntryPointTests.cpp b/src/tests/end2end/EntryPointTests.cpp
index a215f52..fd9d007 100644
--- a/src/tests/end2end/EntryPointTests.cpp
+++ b/src/tests/end2end/EntryPointTests.cpp
@@ -137,7 +137,6 @@
 
 DAWN_INSTANTIATE_TEST(EntryPointTests,
                       D3D12Backend(),
-                      D3D12Backend({"use_tint_generator"}),
                       MetalBackend(),
                       OpenGLBackend(),
                       OpenGLESBackend(),