Remove AttachmentInfo from VulkanViewer setup

src/gpu/vk/GrVkCaps.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrVkCaps.h"
 
 #include "GrVkUtil.h"
@@ skipping 171 matching lines @@
                               VkFormat format) {
     VkFormatProperties props;
     memset(&props, 0, sizeof(VkFormatProperties));
     GR_VK_CALL(interface, GetPhysicalDeviceFormatProperties(physDev, format, &props));
     return SkToBool(VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT & props.optimalTilingFeatures);
 }
 
 void GrVkCaps::initStencilFormat(const GrVkInterface* interface, VkPhysicalDevice physDev) {
     // List of legal stencil formats (though perhaps not supported on
     // the particular gpu/driver) from most preferred to least. We are guaranteed to have either
-    // VK_FORMAT_D24_UNORM_S8_UINT or VK_FORMAT_D24_SFLOAT_S8_UINT. VK_FORMAT_D32_SFLOAT_S8_UINT
+    // VK_FORMAT_D24_UNORM_S8_UINT or VK_FORMAT_D32_SFLOAT_S8_UINT. VK_FORMAT_D32_SFLOAT_S8_UINT
     // can optionally have 24 unused bits at the end so we assume the total bits is 64.
     static const StencilFormat
                   // internal Format             stencil bits      total bits        packed?
         gS8    = { VK_FORMAT_S8_UINT,            8,                 8,               false },
         gD24S8 = { VK_FORMAT_D24_UNORM_S8_UINT,  8,                32,               true },
         gD32S8 = { VK_FORMAT_D32_SFLOAT_S8_UINT, 8,                64,               true };
 
     if (stencil_format_supported(interface, physDev, VK_FORMAT_S8_UINT)) {
         fPreferedStencilFormat = gS8;
     } else if (stencil_format_supported(interface, physDev, VK_FORMAT_D24_UNORM_S8_UINT)) {
@@ skipping 34 matching lines @@
 
 void GrVkCaps::ConfigInfo::init(const GrVkInterface* interface,
                                 VkPhysicalDevice physDev,
                                 VkFormat format) {
     VkFormatProperties props;
     memset(&props, 0, sizeof(VkFormatProperties));
     GR_VK_CALL(interface, GetPhysicalDeviceFormatProperties(physDev, format, &props));
     InitConfigFlags(props.linearTilingFeatures, &fLinearFlags);
     InitConfigFlags(props.optimalTilingFeatures, &fOptimalFlags);
 }