patch 8.1.1730: wrong place for mark viminfo support

Problem:    Wrong place for mark viminfo support.
Solution:   Move it to viminfo.c. (Yegappan Lakshmanan, closes #4716)
diff --git a/src/proto/mark.pro b/src/proto/mark.pro
index 150e986..6634157 100644
--- a/src/proto/mark.pro
+++ b/src/proto/mark.pro
@@ -27,12 +27,5 @@
 void free_jumplist(win_T *wp);
 void set_last_cursor(win_T *win);
 void free_all_marks(void);
-int read_viminfo_filemark(vir_T *virp, int force);
-void prepare_viminfo_marks(void);
-void finish_viminfo_marks(void);
-void handle_viminfo_mark(garray_T *values, int force);
-void write_viminfo_filemarks(FILE *fp);
-int removable(char_u *name);
-void write_viminfo_marks(FILE *fp_out, garray_T *buflist);
-void copy_viminfo_marks(vir_T *virp, FILE *fp_out, garray_T *buflist, int eof, int flags);
+xfmark_T *get_namedfm(void);
 /* vim: set ft=c : */