* procfs.c (procfs_insert_watchpoint, procfs_remove_watchpoint)

	* procfs.c (procfs_insert_watchpoint, procfs_remove_watchpoint)
	(procfs_region_ok_for_hw_watchpoint, procfs_use_watchpoints): New
	functions.
	(procfs_stopped_by_watchpoint): Made static, ptid argument
	removed.
	(_initialize_procfs): Register new watchpoint related target
	functions.
	* config/i386/nm-i386sol2.h (TARGET_CAN_USE_HARDWARE_WATCHPOINT)
	(TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT, STOPPED_BY_WATCHPOINT)
	(HAVE_CONTINUABLE_WATCHPOINT): Delete.
	(target_insert_watchpoint, target_remove_watchpoint): Delete.
	(procfs_stopped_by_watchpoint, procfs_set_watchpoint): Delete
	declarations.
	* config/mips/nm-irix5.h (STOPPED_BY_WATCHPOINT)
	(TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT): Delete.
	(target_insert_watchpoint, target_remove_watchpoint): Delete.
	(procfs_stopped_by_watchpoint, procfs_set_watchpoint): Delete
	declarations.
	* config/sparc/nm-sol2.h (TARGET_REGION_SIZE_OK_FOR_HW_WATCHPOINT)
	(HAVE_CONTINUABLE_WATCHPOINT, STOPPED_BY_WATCHPOINT): Delete.
	(target_insert_watchpoint, target_remove_watchpoint): Delete.
	(procfs_stopped_by_watchpoint, procfs_set_watchpoint): Delete
	declarations.