Revert of Refactor how we store and use samplers in Ganesh (patchset #7 id:120001 of https://codereview.chromium.org/1885863004/ )

Reason for revert:
breaking bots

Original issue's description:
> Refactor how we store and use samplers in Ganesh
>
> The main goal of this refactorization is to allow Vulkan to use separate
> sampler and texture objects in the shader and descriptor sets and combine
> them into a sampler2d in the shader where needed.
>
> A large part of this is separating how we store samplers and uniforms in the
> UniformHandler. We no longer need to store handles to samplers besides when
> we are initially emitting code. After we emit code all we ever do is loop over
> all samplers and do some processor independent work on them, so we have no need
> for direct access to individual samplers.
>
> In the GLProgram all we ever do is set the sampler uniforms in the ctor and never
> touch them again, so no need to save sampler info there. The texture access on
> program reuse just assume that they come in the same order as we set the texture
> units for the samplers
>
> For Vulkan, it is a similar story. We create the descriptor set layouts with the samplers,
> then when we get new textures, we just assume they come in in the same order as we
> set the samplers on the descriptor sets. Thus no need to save direct vulkan info.
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1885863004
>
> Committed: https://skia.googlesource.com/skia/+/45b61a1c4c0be896e7b12fd1405abfece799114f

TBR=bsalomon@google.com,jvanverth@google.com,cdalton@nvidia.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1896013003

1 files changed, 0 insertions, 49 deletions

diff --git a/src/gpu/vk/GrVkGLSLSampler.h b/src/gpu/vk/GrVkGLSLSampler.h
deleted file mode 100644
index 4bfacaed48..0000000000
--- a/src/gpu/vk/GrVkGLSLSampler.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
-* Copyright 2016 Google Inc.
-*
-* Use of this source code is governed by a BSD-style license that can be
-* found in the LICENSE file.
-*/
-
-#ifndef GrVkGLSLSampler_DEFINED
-#define GrVkGLSLSampler_DEFINED
-
-#include "glsl/GrGLSLSampler.h"
-
-#include "glsl/GrGLSLShaderVar.h"
-
-class GrVkGLSLSampler : public GrGLSLSampler {
-public:
-    GrVkGLSLSampler(uint32_t visibility,
-                    GrPixelConfig config,
-                    GrSLType type,
-                    GrSLPrecision precision,
-                    const char* name,
-                    uint32_t binding,
-                    uint32_t set) : INHERITED(visibility, config), fBinding(binding) {
-        SkASSERT(GrSLTypeIsSamplerType(type));
-        fShaderVar.setType(type);
-        fShaderVar.setTypeModifier(GrGLSLShaderVar::kUniform_TypeModifier);
-        fShaderVar.setPrecision(precision);
-        fShaderVar.accessName()->set(name);
-        SkString layoutQualifier;
-        layoutQualifier.appendf("set=%d, binding=%d", set, binding);
-        fShaderVar.setLayoutQualifier(layoutQualifier.c_str());
-    }
-
-    GrSLType type() const override { return fShaderVar.getType(); }
-    uint32_t binding() const { return fBinding; }
-
-    const char* onGetSamplerNameForTexture2D() const override { return fShaderVar.c_str(); }
-    const char* getSamplerNameForTexelFetch() const override { return fShaderVar.c_str(); }
-
-private:
-    GrGLSLShaderVar fShaderVar;
-    uint32_t        fBinding;
-
-    friend class GrVkUniformHandler;
-
-    typedef GrGLSLSampler INHERITED;
-};
-
-#endif