chore: use nghttp2's config.h on all platforms (#35486)

nodejs/node#27283

Co-authored-by: Shelley Vohr <shelley.vohr@gmail.com>

patches/node/build_add_gn_build_files.patch

@@ -672,10 +672,10 @@ index 0000000000000000000000000000000000000000..fb000f8ee7647c375bc190d1729d67bb
 +}
 diff --git a/deps/nghttp2/BUILD.gn b/deps/nghttp2/BUILD.gn
 new file mode 100644
-index 0000000000000000000000000000000000000000..8bfecba74d4d90e9fbf0e2cd301118e4adc6cba8
+index 0000000000000000000000000000000000000000..9abde472d88923db835b12982b7f2ccb1f260196
 --- /dev/null
 +++ b/deps/nghttp2/BUILD.gn
-@@ -0,0 +1,49 @@
+@@ -0,0 +1,47 @@
 +config("nghttp2_config") {
 +  defines = [ "NGHTTP2_STATICLIB" ]
 +  include_dirs = [ "lib/includes" ]
@@ -686,11 +686,9 @@ index 0000000000000000000000000000000000000000..8bfecba74d4d90e9fbf0e2cd301118e4
 +    "_U_",
 +    "BUILDING_NGHTTP2",
 +    "NGHTTP2_STATICLIB",
++    "HAVE_CONFIG_H",
 +  ]
 +  include_dirs = [ "lib/includes" ]
-+  if (is_win) {
-+    defines += [ "HAVE_CONFIG_H" ]
-+  }
 +
 +  cflags_c = [
 +    "-Wno-implicit-function-declaration",