RendererVk: Enable VK_KHR_image_format_list on SwiftShader.

This reverts commit 08b42714f5.

Bug: angleproject:5281
Bug: chromium:1245774
Change-Id: I773d95225301ccf3c2807fd2269b6d7da1195a16
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3223679
Commit-Queue: Lubosz Sarnecki <lubosz.sarnecki@collabora.com>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/libANGLE/renderer/vulkan/RendererVk.cpp

@@ -2712,8 +2712,7 @@ void RendererVk::initFeatures(DisplayVk *displayVk,
 
     ANGLE_FEATURE_CONDITION(
         &mFeatures, supportsImageFormatList,
-        (ExtensionFound(VK_KHR_IMAGE_FORMAT_LIST_EXTENSION_NAME, deviceExtensionNames)) &&
-            !isSwiftShader);
+        ExtensionFound(VK_KHR_IMAGE_FORMAT_LIST_EXTENSION_NAME, deviceExtensionNames));
 
     // Feature disabled due to driver bugs:
     //