[gin] Update Ignition experiment to pass --ignition-staging.

gin/gin_features.cc

Index: gin/gin_features.cc
diff --git a/gin/gin_features.cc b/gin/gin_features.cc
index e9bd0a524784e5f3836c76fd61f6733e413194c4..b474b191ac34b6ec279d17db1bd45bcefb07aec2 100644
--- a/gin/gin_features.cc
+++ b/gin/gin_features.cc
@@ -17,16 +17,4 @@ const base::Feature kV8IgnitionLowEnd {
   "V8IgnitionLowEnd", base::FEATURE_ENABLED_BY_DEFAULT
 };
 
-// Enables lazy compilation for the V8 Ignition interpreter. Only
-// one of V8IgnitionLazy or V8IgnitionEager should be enabled.
-const base::Feature kV8IgnitionLazy {
-  "V8IgnitionLazy", base::FEATURE_DISABLED_BY_DEFAULT
-};
-
-// Enables eager compilation for the V8 Ignition interpreter. Only
-// one of V8IgnitionLazy or V8IgnitionEager should be enabled.
-const base::Feature kV8IgnitionEager {
-  "V8IgnitionEager", base::FEATURE_DISABLED_BY_DEFAULT
-};
-
 }  // namespace features