[SPARC]: Remove SunOS and Solaris binary support.

As per Documentation/feature-removal-schedule.txt

Signed-off-by: David S. Miller <davem@davemloft.net>

include/asm-sparc64/user.h

@@ -1,60 +1 @@
-/* $Id: user.h,v 1.1 1996/12/26 14:22:44 davem Exp $
- * asm-sparc64/user.h: Core file definitions for the Sparc.
- *
- * Keep in sync with reg.h.  Actually, we could get rid of this
- * one, since we won't a.out core dump that much anyways - miguel.
- * Copyright (C) 1995 (davem@caip.rutgers.edu)
- */
-#ifndef _SPARC64_USER_H
-#define _SPARC64_USER_H
-
-#include <linux/a.out.h>
-struct sunos_regs {
-	unsigned int psr, pc, npc, y;
-	unsigned int regs[15];
-};
-
-struct sunos_fpqueue {
-	unsigned int *addr;
-	unsigned int inst;
-};
-
-struct sunos_fp {
-	union {
-		unsigned int regs[32];
-		double reg_dbls[16];
-	} fregs;
-	unsigned int fsr;
-	unsigned int flags;
-	unsigned int extra;
-	unsigned int fpq_count;
-	struct sunos_fpqueue fpq[16];
-};
-
-struct sunos_fpu {
-	struct sunos_fp fpstatus;
-};
-
-/* The SunOS core file header layout. */
-struct user {
-	unsigned int magic;
-	unsigned int len;
-	struct sunos_regs regs;
-	struct exec uexec;
-	int           signal;
-	size_t        u_tsize; /* all of these in bytes! */
-	size_t        u_dsize;
-	size_t        u_ssize;
-	char          u_comm[17];
-	struct sunos_fpu fpu;
-	unsigned int  sigcode;   /* Special sigcontext subcode, if any */
-};
-
-#define NBPG                   PAGE_SIZE /* XXX 4096 maybe? */
-#define UPAGES                 1
-#define HOST_TEXT_START_ADDR   (u.start_code)
-#define HOST_DATA_START_ADDR   (u.start_data)
-#define HOST_STACK_END_ADDR    (u.start_stack + u.u_ssize * NBPG)
-#define SUNOS_CORE_MAGIC       0x080456
-
-#endif /* !(_SPARC64_USER_H) */
+#include <asm-sparc/user.h>