Revert of [Windows Sandbox] Turn on MITIGATION_EXTENSION_POINT_DISABLE.

content/public/common/BUILD.gn

Index: content/public/common/BUILD.gn
diff --git a/content/public/common/BUILD.gn b/content/public/common/BUILD.gn
index d3b05edf8f4d8ab5d36ad37837ca60bc798939c6..b66217711c6c7e75229d4939405006a4c4b56d8a 100644
--- a/content/public/common/BUILD.gn
+++ b/content/public/common/BUILD.gn
@@ -72,24 +72,6 @@
   sources = [
     "//content/common/content_export.h",
     "content_switches.cc",
-  ]
-
-  public_configs = [ ":static_switches_defines" ]
-}
-
-# This target allows you to use the content_features constants and statically
-# link to it, without depending on the rest of content. This is only for use
-# without content, or you will get multiply defined symbols.
-source_set("static_features") {
-  public = [
-    "content_features.h",
-  ]
-  sources = [
-    "//content/common/content_export.h",
-    "content_features.cc",
-  ]
-  public_deps = [
-    "//base",
   ]
 
   public_configs = [ ":static_switches_defines" ]