patch 8.0.0193: accidentally removed #ifdef

Problem:    Accidentally removed #ifdef.
Solution:   Put it back. (Masanori Misono)
diff --git a/src/move.c b/src/move.c
index e2639fd..c4f21a7 100644
--- a/src/move.c
+++ b/src/move.c
@@ -2841,8 +2841,10 @@
 	    restart_edit_save = restart_edit;
 	    restart_edit = TRUE;
 	    check_cursor();
+# ifdef FEAT_SYN_HL
 	    if (curwin->w_p_cul || curwin->w_p_cuc)
 		validate_cursor();
+# endif
 	    restart_edit = restart_edit_save;
 # ifdef FEAT_MBYTE
 	    /* Correct cursor for multi-byte character. */