Revert of Refactor GrBufferAllocPools to use resource cache

src/gpu/GrGpu.cpp

Index: src/gpu/GrGpu.cpp
diff --git a/src/gpu/GrGpu.cpp b/src/gpu/GrGpu.cpp
index 728fb880622010fa9495932d467b7f6df7d3ff04..d46d09d5c7b5544ff828fa552235575ceecef67a 100644
--- a/src/gpu/GrGpu.cpp
+++ b/src/gpu/GrGpu.cpp
@@ -199,20 +199,12 @@
 
 GrVertexBuffer* GrGpu::createVertexBuffer(size_t size, bool dynamic) {
     this->handleDirtyContext();
-    GrVertexBuffer* vb = this->onCreateVertexBuffer(size, dynamic);
-    if (!this->caps()->reuseScratchBuffers()) {
-        vb->resourcePriv().removeScratchKey();
-    }
-    return vb;
+    return this->onCreateVertexBuffer(size, dynamic);
 }
 
 GrIndexBuffer* GrGpu::createIndexBuffer(size_t size, bool dynamic) {
     this->handleDirtyContext();
-    GrIndexBuffer* ib = this->onCreateIndexBuffer(size, dynamic);
-    if (!this->caps()->reuseScratchBuffers()) {
-        ib->resourcePriv().removeScratchKey();
-    }
-    return ib;
+    return this->onCreateIndexBuffer(size, dynamic);
 }
 
 void GrGpu::clear(const SkIRect* rect,