uml: style fixes in FP code

Tidy the code affected by the floating point fixes.

A bunch of unused stuff is gone, including two sigcontext.c files,
which turned out to be entirely unneeded.

There are the usual fixes -
	whitespace and style cleanups
	copyright updates
	emacs formatting comments gone
	include cleanups
	adding severities to printks

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/um/sys-i386/Makefile b/arch/um/sys-i386/Makefile
index 9468cf3..964dc1a0 100644
--- a/arch/um/sys-i386/Makefile
+++ b/arch/um/sys-i386/Makefile
@@ -3,14 +3,14 @@
 #
 
 obj-y = bug.o bugs.o checksum.o delay.o fault.o ksyms.o ldt.o ptrace.o \
-	ptrace_user.o setjmp.o signal.o sigcontext.o stub.o stub_segv.o \
-	syscalls.o sysrq.o sys_call_table.o tls.o
+	ptrace_user.o setjmp.o signal.o stub.o stub_segv.o syscalls.o sysrq.o \
+	sys_call_table.o tls.o
 
 subarch-obj-y = lib/bitops_32.o lib/semaphore_32.o lib/string_32.o
 subarch-obj-$(CONFIG_HIGHMEM) += mm/highmem_32.o
 subarch-obj-$(CONFIG_MODULES) += kernel/module_32.o
 
-USER_OBJS := bugs.o ptrace_user.o sigcontext.o fault.o
+USER_OBJS := bugs.o ptrace_user.o fault.o
 
 USER_OBJS += user-offsets.s
 extra-y += user-offsets.s