Removed reference to Carbon by postponed feature.

docs/build.dox

@@ -276,12 +276,8 @@ If you are using the dynamic library version of GLFW, simply add it to the
 project dependencies.
 
 If you are using the static library version of GLFW, add it and the Cocoa,
-OpenGL, IOKit, CoreVideo and Carbon frameworks to the project as dependencies.
-They can all be found in `/System/Library/Frameworks`.
-
-@note GLFW needs the Carbon framework only to access the current keyboard layout
-via the Text Input Source Services.  This is one of the non-deprecated parts of
-the Carbon API and the only way to access this information on OS X.
+OpenGL, IOKit and CoreVideo frameworks to the project as dependencies.  They can
+all be found in `/System/Library/Frameworks`.
 
 
 @subsection build_link_osx With command-line on OS X