Remove build_overrides/v8.gni.

gni/v8.gni

Index: gni/v8.gni
diff --git a/gni/v8.gni b/gni/v8.gni
index 1f26674108a2e86dfa7e7824049c99f35ac6ac5f..c1a3b7cca9286fe6b90793fa21d9da6dc643c7c9 100644
--- a/gni/v8.gni
+++ b/gni/v8.gni
@@ -4,7 +4,6 @@
 
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/v8_target_cpu.gni")
-import("//build_overrides/v8.gni")
 
 declare_args() {
   # Includes files needed for correctness fuzzing.
@@ -35,16 +34,8 @@ declare_args() {
   # add a dependency on the ICU library.
   v8_enable_i18n_support = true
 
-  # TODO(brettw) http://crbug.com/684096 Remove the define condition and the
-  # v8_enable_inspector_override variable when the build_override conversion is
-  # complete. This value should just default to true.
-  if (defined(v8_enable_inspector_override)) {
-    # Enable inspector. See include/v8-inspector.h.
-    v8_enable_inspector = v8_enable_inspector_override
-  } else {
-    # Enable inspector. See include/v8-inspector.h.
-    v8_enable_inspector = true
-  }
+  # Enable inspector. See include/v8-inspector.h.
+  v8_enable_inspector = true
 
   # Use static libraries instead of source_sets.
   v8_static_library = false