Remove first check random delay on older devices

ash/display/display_color_manager_chromeos_unittest.cc

Index: ash/display/display_color_manager_chromeos_unittest.cc
diff --git a/ash/display/display_color_manager_chromeos_unittest.cc b/ash/display/display_color_manager_chromeos_unittest.cc
index f6b745aeff7ae96550b84170b27c95c1ba723217..a68bc1d1c166e784c09fb3b529f24a88db773957 100644
--- a/ash/display/display_color_manager_chromeos_unittest.cc
+++ b/ash/display/display_color_manager_chromeos_unittest.cc
@@ -97,10 +97,6 @@ class QuirksManagerDelegateTestImpl : public quirks::QuirksManager::Delegate {
   // Unused by these tests.
   bool DevicePolicyEnabled() const override { return true; }
 
-  // Unused by these tests.
-  void GetDaysSinceOobe(
-      quirks::QuirksManager::DaysSinceOobeCallback callback) const override {}
-
  private:
   ~QuirksManagerDelegateTestImpl() override = default;