Revert "Enable YCbCr sampler support on platforms other than Android"

This reverts commit cc4573dfed717a87398e1a08f80d69d5a19a0ab8.

Reason for revert: Seems to be crashing in Win Intel vulkan bots

Original change's description:
> Enable YCbCr sampler support on platforms other than Android
> 
> Previously YCbCr Vulkan samplers were supported only on Android for
> external images, while Vulkan requires YCbCr sampler for I420 YUV image
> formats such as VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM,
> VK_FORMAT_G8_B8R8_2PLANE_420_UNORM.
> This CL:
>  - Adds VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM and
>    VK_FORMAT_G8_B8R8_2PLANE_420_UNORM as supported Vulkan formats
>  - Updates GrVkYcbcrConversionInfo to add fFormat field and allow
>    fExternalFormat=0.
>  - Removes assertions format=VK_FORMAT_UNDEFINED for all images that
>    have ycbcr info.
> 
> Bug: chromium:981022
> Change-Id: I3989f72e918a257a081b81ae20429a6771229ad6
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/230918
> Commit-Queue: Sergey Ulanov <sergeyu@chromium.org>
> Commit-Queue: Greg Daniel <egdaniel@google.com>
> Auto-Submit: Sergey Ulanov <sergeyu@chromium.org>
> Reviewed-by: Greg Daniel <egdaniel@google.com>

TBR=egdaniel@google.com,sergeyu@chromium.org

Change-Id: Ia9c229fbec4cd397fb04304753fa49f34336ed3a
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:981022
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/233563
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
diff --git a/src/gpu/vk/GrVkImageView.cpp b/src/gpu/vk/GrVkImageView.cpp
index ce7b1c5..73b54e3 100644
--- a/src/gpu/vk/GrVkImageView.cpp
+++ b/src/gpu/vk/GrVkImageView.cpp
@@ -19,7 +19,7 @@
     GrVkSamplerYcbcrConversion* ycbcrConversion = nullptr;
 
     if (ycbcrInfo.isValid()) {
-        SkASSERT(gpu->vkCaps().supportsYcbcrConversion() && format == ycbcrInfo.fFormat);
+        SkASSERT(gpu->vkCaps().supportsYcbcrConversion() && format == VK_FORMAT_UNDEFINED);
 
         ycbcrConversion =
                 gpu->resourceProvider().findOrCreateCompatibleSamplerYcbcrConversion(ycbcrInfo);