[PATCH 3/3] ARM: remove empty disable_fiq and arch_ret_to_user macros

* Rob Herring [off-list ref] [120206 12:36]:

From: Rob Herring <redacted>

Now that most platforms don't need disable_fiq and arch_ret_to_user
macros, we can remove the empty macros or empty entry-macro.S files.

Signed-off-by: Rob Herring <redacted>

For omaps:

Acked-by: Tony Lindgren <tony@atomide.com>