Clean up the alpha port, remove the backend/port/alpha subdirectory

structure, and move the init_address_fixup() code directly into
backend/main/main.c with appropriate #ifdefs around it...

src/backend/port/hpux/Makefile

@@ -1,34 +0,0 @@
-#-------------------------------------------------------------------------
-#
-# Makefile--
-#    Makefile for port/hpux
-#
-# IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/backend/port/hpux/Attic/Makefile,v 1.3 1997/12/20 00:25:34 scrappy Exp $
-#
-#-------------------------------------------------------------------------
-
-SRCDIR = ../../..
-include ../../../Makefile.global
-
-INCLUDE_OPT = -I../.. 
-
-CFLAGS+=$(INCLUDE_OPT)
-
-OBJS = port.o dynloader.o tas.o
-
-all: SUBSYS.o
-
-SUBSYS.o: $(OBJS)
-	$(LD) -r -o SUBSYS.o $(OBJS)
-
-depend dep:
-	$(CC) -MM $(INCLUDE_OPT) *.c >depend
-
-clean: 
-	rm -f SUBSYS.o $(OBJS)
-
-ifeq (depend,$(wildcard depend))
-include depend
-endif
-

src/backend/port/hpux/port.c

@@ -1,32 +0,0 @@
-/*-------------------------------------------------------------------------
- *
- * port.c--
- *	  port-specific routines for HP-UX
- *
- * Copyright (c) 1994, Regents of the University of California
- *
- *
- * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/port/hpux/Attic/port.c,v 1.4 1997/12/19 02:45:44 scrappy Exp $
- *
- * NOTES
- *	  For the most part, this file gets around some non-POSIX calls
- *	  in POSTGRES.
- *
- *-------------------------------------------------------------------------
- */
-#include <unistd.h>				/* for rand()/srand() prototypes */
-#include <math.h>				/* for pow() prototype */
-#include <sys/syscall.h>		/* for syscall #defines */
-
-#include "c.h"
-
-void
-init_address_fixup()
-{
-
-	/*
-	 * On PA-RISC, unaligned access fixup is handled by the compiler, not
-	 * by the kernel.
-	 */
-}