Revert "ARM: 8846/1: warn if divided syntax assembler is used"

Revert "ARM: 8846/1: warn if divided syntax assembler is used"

This reverts commit ddb9b5f020cc832baf60d6d0a9c01222f34d5ae7.

GCC 4.7, which is still permitted, emits code using the original
syntax.  This means we end up with lots of assembler warnings when
building with a currently-supported version of gcc.

Revert the commit (with fixups to keep the follow-on -mauto-it
change) to avoid these warnings.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>