* xterm.h (x_display_info): Remove `height' and `width' members.

* xterm.h (x_display_info): Remove `height' and `width' members.

* nsterm.h (ns_display_info): Remove `height' and `width' members.

* w32term.h (w32_display_info): Remove `height', `width',
`height_in', and `width_in' members.

* xterm.c (x_display_pixel_height, x_display_pixel_width): New
functions.
(x_calc_absolute_position): Use them.
(x_term_init): Omit removed `height' and `width' members.

* w32term.c (x_display_pixel_height, x_display_pixel_width): New
functions.
(w32_read_socket, x_calc_absolute_position): Use them.
(w32_initialize_display_info, w32_term_init): Omit removed members
of w32_display_info.

* nsterm.m (x_display_pixel_height, x_display_pixel_width): New
functions.
(ns_initialize_display_info): Omit removed members of
ns_display_info.

* xterm.c (x_display_pixel_height, x_display_pixel_width): New
functions.
(x_calc_absolute_position): Use them.
(x_term_init): Omit removed `height' and `width' members.

* xfns.c (Fx_display_pixel_width, Fx_display_pixel_height)
(compute_tip_xy): Use x_display_pixel_height and
x_display_pixel_width.

* frame.c (x_fullscreen_adjust): Use x_display_pixel_height and
x_display_pixel_width.

* xmenu.c (menu_position_func): Use x_display_pixel_height and
x_display_pixel_width.