Remove deprecated SurfaceFactoryOzone methods.

ui/ozone/public/surface_factory_ozone.cc

Index: ui/ozone/public/surface_factory_ozone.cc
diff --git a/ui/ozone/public/surface_factory_ozone.cc b/ui/ozone/public/surface_factory_ozone.cc
index c38c240afbb8b98e2d3cf4e63f2e9114351c0006..29266251304a6b3684e5e902d00ecd1f9d621a01 100644
--- a/ui/ozone/public/surface_factory_ozone.cc
+++ b/ui/ozone/public/surface_factory_ozone.cc
@@ -18,50 +18,18 @@ SurfaceFactoryOzone::~SurfaceFactoryOzone() {}
 
 std::vector<gl::GLImplementation>
 SurfaceFactoryOzone::GetAllowedGLImplementations() {
-  std::vector<gl::GLImplementation> impls;
-  // TODO(kylechar): Remove EGL from this list once every Ozone platform that
-  // uses EGL overrides this method.
-  impls.push_back(gl::kGLImplementationEGLGLES2);
-  impls.push_back(gl::kGLImplementationOSMesaGL);
-  return impls;
+  return std::vector<gl::GLImplementation>{gl::kGLImplementationOSMesaGL};
 }
 
 GLOzone* SurfaceFactoryOzone::GetGLOzone(gl::GLImplementation implementation) {
   return nullptr;
 }
 
-intptr_t SurfaceFactoryOzone::GetNativeDisplay() {
-  return 0;
-}
-
-scoped_refptr<gl::GLSurface> SurfaceFactoryOzone::CreateViewGLSurface(
-    gl::GLImplementation implementation,
-    gfx::AcceleratedWidget widget) {
-  return nullptr;
-}
-
-scoped_refptr<gl::GLSurface>
-SurfaceFactoryOzone::CreateSurfacelessViewGLSurface(
-    gl::GLImplementation implementation,
-    gfx::AcceleratedWidget widget) {
-  return nullptr;
-}
-
-scoped_refptr<gl::GLSurface> SurfaceFactoryOzone::CreateOffscreenGLSurface(
-    gl::GLImplementation implementation,
-    const gfx::Size& size) {
-  return nullptr;
-}
-
 std::unique_ptr<SurfaceOzoneCanvas> SurfaceFactoryOzone::CreateCanvasForWidget(
     gfx::AcceleratedWidget widget) {
   return nullptr;
 }
 
-bool SurfaceFactoryOzone::LoadEGLGLES2Bindings() {
-  return false;
-}
-
 std::vector<gfx::BufferFormat> SurfaceFactoryOzone::GetScanoutFormats(
     gfx::AcceleratedWidget widget) {
   return std::vector<gfx::BufferFormat>();