Remove callbacks for SurfaceFactoryOzone::LoadEGLGLES2Bindings().

ui/ozone/platform/caca/caca_window_manager.cc

Index: ui/ozone/platform/caca/caca_window_manager.cc
diff --git a/ui/ozone/platform/caca/caca_window_manager.cc b/ui/ozone/platform/caca/caca_window_manager.cc
index da4466e2e2c1960f40310ed9a82d20671b4992f8..02466797ef40ae07cb22c60cf20ed5d7d2ffc0ce 100644
--- a/ui/ozone/platform/caca/caca_window_manager.cc
+++ b/ui/ozone/platform/caca/caca_window_manager.cc
@@ -23,7 +23,7 @@ namespace {
 
 class CacaSurface : public ui::SurfaceOzoneCanvas {
  public:
-  CacaSurface(CacaWindow* window);
+  explicit CacaSurface(CacaWindow* window);
   ~CacaSurface() override;
 
   bool Initialize();
@@ -120,13 +120,6 @@ CacaWindowManager::~CacaWindowManager() {
   DCHECK(thread_checker_.CalledOnValidThread());
 }
 
-bool CacaWindowManager::LoadEGLGLES2Bindings(
-    AddGLLibraryCallback add_gl_library,
-    SetGLGetProcAddressProcCallback set_gl_get_proc_address) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  return false;
-}
-
 std::unique_ptr<ui::SurfaceOzoneCanvas>
 CacaWindowManager::CreateCanvasForWidget(gfx::AcceleratedWidget widget) {
   DCHECK(thread_checker_.CalledOnValidThread());