A better fix for drawing hollow cursor on X on 1-pixel thin space characters.

A better fix for drawing hollow cursor on X on 1-pixel thin space characters.

 src/xterm.c (x_draw_bar_cursor, x_draw_hollow_cursor): Subtract 1
 pixel from the window's cursor glyph width, since X renders hollow
 blocks 1 pixel wider than the 'width' parameter.
 src/xdisp.c (get_phys_cursor_geometry): Don't subtract 1 pixel from
 glyph->pixel_width; this is now done in xterm.c.