Revert "Moar testing on OpenGL ES backend."

This reverts commit 7bfb3ed2c6dccfa209b5896e263e1bdd63922aa2.

Reason for revert: Still failing some zero init tests

Original change's description:
> Moar testing on OpenGL ES backend.
>
> This CL enables the GLES backend on all the remaining tests for which
> the desktop OpenGL backend is enabled.
>
> Bug: dawn:580
> Change-Id: Iab0d13299d58d17749a3405d25d27da7ba4077fa
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/39320
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Reviewed-by: Austin Eng <enga@chromium.org>
> Commit-Queue: Stephen White <senorblanco@chromium.org>

TBR=cwallez@chromium.org,senorblanco@chromium.org,enga@chromium.org

Change-Id: I37bb1438107151f11617e67287fe9f5e0e22fd21
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: dawn:580
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/39361
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Stephen White <senorblanco@chromium.org>

src/tests/end2end/BufferTests.cpp

@@ -437,7 +437,6 @@ DAWN_INSTANTIATE_TEST(BufferMappingTests,
                       D3D12Backend(),
                       MetalBackend(),
                       OpenGLBackend(),
-                      OpenGLESBackend(),
                       VulkanBackend());
 
 class BufferMappedAtCreationTests : public DawnTest {
@@ -692,7 +691,6 @@ DAWN_INSTANTIATE_TEST(BufferMappedAtCreationTests,
                       D3D12Backend({}, {"use_d3d12_resource_heap_tier2"}),
                       MetalBackend(),
                       OpenGLBackend(),
-                      OpenGLESBackend(),
                       VulkanBackend());
 
 class BufferTests : public DawnTest {};

src/tests/end2end/BufferZeroInitTests.cpp

@@ -1248,5 +1248,4 @@ DAWN_INSTANTIATE_TEST(BufferZeroInitTest,
                       D3D12Backend({"nonzero_clear_resources_on_creation_for_testing"}),
                       MetalBackend({"nonzero_clear_resources_on_creation_for_testing"}),
                       OpenGLBackend({"nonzero_clear_resources_on_creation_for_testing"}),
-                      OpenGLESBackend({"nonzero_clear_resources_on_creation_for_testing"}),
                       VulkanBackend({"nonzero_clear_resources_on_creation_for_testing"}));

src/tests/end2end/IndexFormatTests.cpp

@@ -481,11 +481,9 @@ DAWN_INSTANTIATE_TEST(TriangleStripPrimitiveRestartTests,
                       D3D12Backend(),
                       MetalBackend(),
                       OpenGLBackend(),
-                      OpenGLESBackend(),
                       VulkanBackend());
 DAWN_INSTANTIATE_TEST(LineStripPrimitiveRestartTests,
                       D3D12Backend(),
                       MetalBackend(),
                       OpenGLBackend(),
-                      OpenGLESBackend(),
                       VulkanBackend());

src/tests/end2end/NonzeroBufferCreationTests.cpp

@@ -135,7 +135,5 @@ DAWN_INSTANTIATE_TEST(NonzeroBufferCreationTests,
                                    {"lazy_clear_resource_on_first_use"}),
                       OpenGLBackend({"nonzero_clear_resources_on_creation_for_testing"},
                                     {"lazy_clear_resource_on_first_use"}),
-                      OpenGLESBackend({"nonzero_clear_resources_on_creation_for_testing"},
-                                      {"lazy_clear_resource_on_first_use"}),
                       VulkanBackend({"nonzero_clear_resources_on_creation_for_testing"},
                                     {"lazy_clear_resource_on_first_use"}));

src/tests/end2end/NonzeroTextureCreationTests.cpp

@@ -293,7 +293,5 @@ DAWN_INSTANTIATE_TEST(NonzeroTextureCreationTests,
                                    {"lazy_clear_resource_on_first_use"}),
                       OpenGLBackend({"nonzero_clear_resources_on_creation_for_testing"},
                                     {"lazy_clear_resource_on_first_use"}),
-                      OpenGLESBackend({"nonzero_clear_resources_on_creation_for_testing"},
-                                      {"lazy_clear_resource_on_first_use"}),
                       VulkanBackend({"nonzero_clear_resources_on_creation_for_testing"},
                                     {"lazy_clear_resource_on_first_use"}));

src/tests/end2end/StorageTextureTests.cpp

@@ -1243,6 +1243,5 @@ TEST_P(StorageTextureZeroInitTests, WriteonlyStorageTextureClearsToZeroInCompute
 DAWN_INSTANTIATE_TEST(StorageTextureZeroInitTests,
                       D3D12Backend({"nonzero_clear_resources_on_creation_for_testing"}),
                       OpenGLBackend({"nonzero_clear_resources_on_creation_for_testing"}),
-                      OpenGLESBackend({"nonzero_clear_resources_on_creation_for_testing"}),
                       MetalBackend({"nonzero_clear_resources_on_creation_for_testing"}),
                       VulkanBackend({"nonzero_clear_resources_on_creation_for_testing"}));

src/tests/end2end/TextureZeroInitTests.cpp

@@ -1687,7 +1687,6 @@ DAWN_INSTANTIATE_TEST(TextureZeroInitTest,
                       D3D12Backend({"nonzero_clear_resources_on_creation_for_testing"},
                                    {"use_d3d12_render_pass"}),
                       OpenGLBackend({"nonzero_clear_resources_on_creation_for_testing"}),
-                      OpenGLESBackend({"nonzero_clear_resources_on_creation_for_testing"}),
                       MetalBackend({"nonzero_clear_resources_on_creation_for_testing"}),
                       VulkanBackend({"nonzero_clear_resources_on_creation_for_testing"}));
 

src/tests/end2end/VertexFormatTests.cpp

@@ -924,5 +924,4 @@ DAWN_INSTANTIATE_TEST(VertexFormatTest,
                       D3D12Backend(),
                       MetalBackend(),
                       OpenGLBackend(),
-                      OpenGLESBackend(),
                       VulkanBackend());

src/tests/end2end/VertexStateTests.cpp

@@ -617,7 +617,6 @@ DAWN_INSTANTIATE_TEST(VertexStateTest,
                       D3D12Backend(),
                       MetalBackend(),
                       OpenGLBackend(),
-                      OpenGLESBackend(),
                       VulkanBackend());
 
 // TODO for the input state:
@@ -676,5 +675,4 @@ DAWN_INSTANTIATE_TEST(OptionalVertexStateTest,
                       D3D12Backend(),
                       MetalBackend(),
                       OpenGLBackend(),
-                      OpenGLESBackend(),
                       VulkanBackend());