patch 8.0.1567: cannot build Win32 GUI without IME

Problem:    Cannot build Win32 GUI without IME. (John Marriott)
Solution:   Adjust when IME_WITHOUT_XIM and HAVE_INPUT_METHOD are defined and
            use it in a few more places.
diff --git a/src/gui.c b/src/gui.c
index eac4fae..cc168a8 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -1077,7 +1077,7 @@
 	gui_undraw_cursor();
 	if (gui.row < 0)
 	    return;
-#ifdef FEAT_MBYTE
+#ifdef HAVE_INPUT_METHOD
 	if (gui.row != gui.cursor_row || gui.col != gui.cursor_col)
 	    im_set_position(gui.row, gui.col);
 #endif
@@ -1135,7 +1135,7 @@
 	if (id > 0)
 	{
 	    cattr = syn_id2colors(id, &cfg, &cbg);
-#if defined(FEAT_MBYTE) || defined(FEAT_HANGULIN)
+#if defined(HAVE_INPUT_METHOD) || defined(FEAT_HANGULIN)
 	    {
 		static int iid;
 		guicolor_T fg, bg;