Remove BUILDING_NOTE_EXTENSION from docs
diff --git a/Doc/Manual/Preprocessor.html b/Doc/Manual/Preprocessor.html
index f09067b..b395798 100644
--- a/Doc/Manual/Preprocessor.html
+++ b/Doc/Manual/Preprocessor.html
@@ -121,7 +121,6 @@
SWIGJAVASCRIPT Defined when using Javascript
SWIG_JAVASCRIPT_JSC Defined when using Javascript for JavascriptCore
SWIG_JAVASCRIPT_V8 Defined when using Javascript for v8 or node.js
-BUILDING_NODE_EXTENSION Defined when using Javascript for node.js
SWIGLUA Defined when using Lua
SWIGMZSCHEME Defined when using Mzscheme
SWIGOCAML Defined when using OCaml