Consolidate GPU buffer implementations

src/gpu/vk/GrVkProgram.cpp

 /*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #include "GrVkProgram.h"
 
 #include "GrPipeline.h"
@@ skipping 88 matching lines @@
         fPipeline = nullptr;
     }
 
     if (fPipelineLayout) {
         GR_VK_CALL(gpu->vkInterface(), DestroyPipelineLayout(gpu->device(),
                                                              fPipelineLayout,
                                                              nullptr));
         fPipelineLayout = VK_NULL_HANDLE;
     }
 
-    if (fVertexUniformBuffer) {
-        fVertexUniformBuffer->release(gpu);
-    }
-
-    if (fFragmentUniformBuffer) {
-        fFragmentUniformBuffer->release(gpu);
-    }
-
     fSamplerPoolManager.freeGPUResources(gpu);
     fUniformPoolManager.freeGPUResources(gpu);
 
     this->freeTempResources(gpu);
 }
 
 void GrVkProgram::abandonGPUResources() {
     fPipeline->unrefAndAbandon();
     fPipeline = nullptr;
 
@@ skipping 303 matching lines @@
     }
 }
 
 void GrVkProgram::DescriptorPoolManager::abandonGPUResources() {
     fDescLayout = VK_NULL_HANDLE;
     if (fPool) {
         fPool->unrefAndAbandon();
         fPool = nullptr;
     }
 }