Revert of ui: Add GLImage unit test framework.

ui/gl/BUILD.gn

Index: ui/gl/BUILD.gn
diff --git a/ui/gl/BUILD.gn b/ui/gl/BUILD.gn
index 827d105fb65e90c8724db7418b3ddf94394c5ead..c63b290d2a27879d8f0ccf9ff0136725cfc6810b 100644
--- a/ui/gl/BUILD.gn
+++ b/ui/gl/BUILD.gn
@@ -285,21 +285,14 @@
 }
 
 source_set("test_support") {
-  testonly = true
   sources = [
-    "test/gl_image_test_support.cc",
-    "test/gl_image_test_support.h",
-    "test/gl_image_test_template.h",
     "test/gl_surface_test_support.cc",
     "test/gl_surface_test_support.h",
-    "test/gl_test_helper.cc",
-    "test/gl_test_helper.h",
   ]
 
   configs += [ "//third_party/khronos:khronos_headers" ]
 
   deps = [
-    "//testing/gtest",
     ":gl",
   ]
 
@@ -324,8 +317,6 @@
 test("gl_unittests") {
   sources = [
     "gl_api_unittest.cc",
-    "gl_image_ref_counted_memory_unittest.cc",
-    "gl_image_shared_memory_unittest.cc",
     "gpu_timing_unittest.cc",
     "test/run_all_unittests.cc",
   ]
@@ -349,10 +340,8 @@
     ":test_support",
     "//base",
     "//base/test:test_support",
-    "//skia",
     "//testing/gmock",
     "//testing/gtest",
-    "//ui/gfx",
   ]
 }