Revert of Move instanced index buffer creation to flush time (patchset #6 id:100001 of https://codereview.chromium.org/1116943004/)

Reason for revert:
messed up caching, recreating index buffers all the time.

Original issue's description:
> Move instanced index buffer creation to flush time
>
> Committed: https://skia.googlesource.com/skia/+/ab622c7b8cc8c39f0a594e4392b9e31b7e1ddb26

TBR=joshualitt@google.com,robertphillips@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1126613003

1 files changed, 0 insertions, 19 deletions

diff --git a/include/gpu/GrResourceKey.h b/include/gpu/GrResourceKey.h
index 50a7145929..aecdc70c0b 100644
--- a/include/gpu/GrResourceKey.h
+++ b/include/gpu/GrResourceKey.h
@@ -10,7 +10,6 @@
 #define GrResourceKey_DEFINED
 
 #include "GrTypes.h"
-#include "SkOnce.h"
 #include "SkTemplates.h"
 
 uint32_t GrResourceKeyHash(const uint32_t* data, size_t size);
@@ -267,24 +266,6 @@ public:
     };
 };
 
-/**
- * It is common to need a frequently reused GrUniqueKey where the only requirement is that the key
- * is unique. These macros create such a key in a thread safe manner so the key can be truly global
- * and only constructed once.
- */
-
-/** Place outside of function/class definitions. */
-#define GR_DECLARE_STATIC_UNIQUE_KEY(name) SK_DECLARE_STATIC_ONCE(name##_once)
-
-/** Place inside function where the key is used. */
-#define GR_DEFINE_STATIC_UNIQUE_KEY(name)                           \
-    static GrUniqueKey name;                                        \
-    SkOnce(&name##_once, gr_init_static_unique_key_once, &name)
-
-static inline void gr_init_static_unique_key_once(GrUniqueKey* key) {
-    GrUniqueKey::Builder builder(key, GrUniqueKey::GenerateDomain(), 0);
-}
-
 // The cache listens for these messages to purge junk resources proactively.
 class GrUniqueKeyInvalidatedMessage {
 public: