Remove stale WebGPU CTS expectations

Autogenerated CL from running:

//content/test/gpu/unexpected_pass_finder.py --project chrome-unexpected-pass-data --include-internal-builders --remove-stale-expectations --narrow-semi-stale-expectation-scope --num-samples 300 --suite webgpu_cts --jobs 2 --disable-batching -v -v

Affected bugs for CL description:

R=rubber-stamper@appspot.gserviceaccount.com

Bug: dawn:0000
Change-Id: I9e44227dc659a44adcf4c76e8491058f562bc28c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/158461
Auto-Submit: chrome-automated-expectation@chops-service-accounts.iam.gserviceaccount.com <chrome-automated-expectation@chops-service-accounts.iam.gserviceaccount.com>
Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
diff --git a/webgpu-cts/expectations.txt b/webgpu-cts/expectations.txt
index f1ecd15..9fe416b 100644
--- a/webgpu-cts/expectations.txt
+++ b/webgpu-cts/expectations.txt
@@ -781,7 +781,6 @@
 crbug.com/dawn/0000 [ android-r dawn-backend-validation qualcomm target-cpu-32 webgpu-adapter-default ] webgpu:api,validation,encoding,cmds,compute_pass:dispatch_sizes:dispatchType="direct";largeDimValueVariant={"mult":1,"add":0} [ RetryOnFailure ]
 crbug.com/dawn/0000 [ android-r dawn-no-backend-validation qualcomm target-cpu-32 webgpu-adapter-default ] webgpu:api,validation,encoding,cmds,compute_pass:dispatch_sizes:dispatchType="direct";largeDimValueVariant={"mult":1,"add":0} [ RetryOnFailure ]
 crbug.com/dawn/0000 [ android-r dawn-no-backend-validation qualcomm target-cpu-32 webgpu-adapter-default ] webgpu:api,validation,gpu_external_texture_expiration:use_import_to_refresh: [ RetryOnFailure ]
-crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 ubuntu webgpu-adapter-default ] webgpu:api,validation,gpu_external_texture_expiration:use_import_to_refresh: [ RetryOnFailure ]
 crbug.com/dawn/0000 [ dawn-no-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-enabled win10 ] webgpu:api,validation,state,device_lost,destroy:createBuffer:usageType="MAP_READ";usageCopy="COPY_DST";awaitLost=false;mappedAtCreation=false [ RetryOnFailure ]
 crbug.com/dawn/0000 [ dawn-no-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-enabled win10 ] webgpu:api,validation,state,device_lost,destroy:createBuffer:usageType="STORAGE";usageCopy="COPY_SRC";awaitLost=true;mappedAtCreation=false [ RetryOnFailure ]
 crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-disabled win10 ] webgpu:api,validation,state,device_lost,destroy:createRenderBundleEncoder:format="r8sint";awaitLost=true [ RetryOnFailure ]
@@ -791,9 +790,6 @@
 crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-disabled win10 ] webgpu:api,validation,state,device_lost,destroy:createView,2d,uncompressed_format:format="r32sint";usageType="storage";usageCopy="src-dest";awaitLost=true [ RetryOnFailure ]
 crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-disabled win10 ] webgpu:api,validation,state,device_lost,destroy:createView,2d,uncompressed_format:format="r32uint";usageType="render";usageCopy="src";awaitLost=true [ RetryOnFailure ]
 crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-disabled win10 ] webgpu:api,validation,state,device_lost,destroy:createView,2d,uncompressed_format:format="r8sint";usageType="texture";usageCopy="dst";awaitLost=true [ RetryOnFailure ]
-crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-enabled win10 ] webgpu:api,validation,state,device_lost,destroy:createView,2d,uncompressed_format:format="rg16sint";usageType="render";usageCopy="src-dest";awaitLost=false [ RetryOnFailure ]
-crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-enabled win10 ] webgpu:api,validation,state,device_lost,destroy:createView,2d,uncompressed_format:format="rg16uint";usageType="render";usageCopy="src";awaitLost=false [ RetryOnFailure ]
-crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-disabled win10 ] webgpu:api,validation,state,device_lost,destroy:createView,2d,uncompressed_format:format="rgba8sint";usageType="render";usageCopy="src-dest";awaitLost=true [ RetryOnFailure ]
 crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-disabled win10 ] webgpu:api,validation,state,device_lost,destroy:importExternalTexture:sourceType="VideoElement";awaitLost=true [ RetryOnFailure ]
 crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-disabled win10 ] webgpu:api,validation,state,device_lost,destroy:queue,writeTexture,2d,compressed_format:format="bc2-rgba-unorm-srgb";awaitLost=false [ RetryOnFailure ]
 crbug.com/dawn/0000 [ dawn-backend-validation nvidia-0x2184 target-cpu-64 webgpu-adapter-default webgpu-dxc-disabled win10 ] webgpu:api,validation,state,device_lost,destroy:queue,writeTexture,2d,compressed_format:format="bc6h-rgb-float";awaitLost=false [ RetryOnFailure ]