log-tree.h: remove unused function declarations

The init_log_tree_opt() and log_tree_opt_parse() functions were
removed in cd2bdc5 (Common option parsing for "git log --diff" and
friends, 2006-04-14), but not their corresponding *.h declaration.

Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: avar

log-tree.h

@@ -14,10 +14,8 @@ struct decoration_filter {
 };
 
 int parse_decorate_color_config(const char *var, const char *slot_name, const char *value);
-void init_log_tree_opt(struct rev_info *);
 int log_tree_diff_flush(struct rev_info *);
 int log_tree_commit(struct rev_info *, struct commit *);
-int log_tree_opt_parse(struct rev_info *, const char **, int);
 void show_log(struct rev_info *opt);
 void format_decorations_extended(struct strbuf *sb, const struct commit *commit,
 			     int use_color,