Revert of command_buffer_gles2: Implement EGL default Display as a global object

gpu/khronos_glcts_support/native/egl_native_windowless.cc

Index: gpu/khronos_glcts_support/native/egl_native_windowless.cc
diff --git a/gpu/khronos_glcts_support/native/egl_native_windowless.cc b/gpu/khronos_glcts_support/native/egl_native_windowless.cc
index 6a59d4b03c3039ce70fa1c465909fa3e4991d527..0bed202b0a847846ee939d9d5b27e9d3aa25cd7c 100644
--- a/gpu/khronos_glcts_support/native/egl_native_windowless.cc
+++ b/gpu/khronos_glcts_support/native/egl_native_windowless.cc
@@ -74,9 +74,9 @@
                                   int height,
                                   qpVisibility visibility) override {
     tcu::egl::Display& eglDisplay = dpy.getEglDisplay();
-    EGLDisplay display = eglDisplay.getEGLDisplay();
-    CommandBufferGLESSetNextCreateWindowSurfaceCreatesPBuffer(eglDisplay, width,
-                                                              height);
+    egl::Display* display =
+        static_cast<egl::Display*>(eglDisplay.getEGLDisplay());
+    display->SetCreateOffscreen(width, height);
     return new Window(eglDisplay, config, attribList, width, height);
   }
 };