Remove the pointer event capturing flag

content/public/common/content_features.cc

Index: content/public/common/content_features.cc
diff --git a/content/public/common/content_features.cc b/content/public/common/content_features.cc
index d8368b2b01c76dd8c8baac2c9b48d9b306e5d27e..2fe1c01d9bebc0933ffd0c5345aaebfa5073473f 100644
--- a/content/public/common/content_features.cc
+++ b/content/public/common/content_features.cc
@@ -143,11 +143,6 @@ const base::Feature kPassiveEventListenersDueToFling{
 const base::Feature kPointerEvents{"PointerEvent",
                                    base::FEATURE_ENABLED_BY_DEFAULT};
 
-// Whether pointer event capturing follow v1 spec instead of v2 proposal.
-// See https://rawgit.com/w3c/pointerevents/reduce-hit-tests/index.html.
-const base::Feature kPointerEventV1SpecCapturing{
-    "PointerEventV1SpecCapturing", base::FEATURE_DISABLED_BY_DEFAULT};
-
 // Enables purge and suspend.
 const base::Feature kPurgeAndSuspend{"PurgeAndSuspend",
                                      base::FEATURE_DISABLED_BY_DEFAULT};