uml: remove code made redundant by CHOOSE_MODE removal

This patch makes a number of simplifications enabled by the removal of
CHOOSE_MODE.  There were lots of functions that looked like

	int foo(args){
		foo_skas(args);
	}

The bodies of foo_skas are now folded into foo, and their declarations (and
sometimes entire header files) are deleted.

In addition, the union uml_pt_regs, which was a union between the tt and skas
register formats, is now a struct, with the tt-mode arm of the union being
removed.

It turns out that usr2_handler was unused, so it is gone.

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/include/asm-um/tlbflush.h b/include/asm-um/tlbflush.h
index 1520b08..9d647c5 100644
--- a/include/asm-um/tlbflush.h
+++ b/include/asm-um/tlbflush.h
@@ -24,18 +24,7 @@
 extern void flush_tlb_mm(struct mm_struct *mm);
 extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, 
 			    unsigned long end);
-extern void flush_tlb_page_skas(struct vm_area_struct *vma,
-				unsigned long address);
-
-static inline void flush_tlb_page(struct vm_area_struct *vma,
-				  unsigned long address)
-{
-	address &= PAGE_MASK;
-
-	flush_tlb_page_skas(vma, address);
-}
-
-extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
+extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long address);
 extern void flush_tlb_kernel_vm(void);
 extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
 extern void __flush_tlb_one(unsigned long addr);