Remove unused functions from struct `rb_parser_config_struct`

ruby_parser.c

@@ -376,8 +376,6 @@ static const rb_parser_config_t rb_global_parser_config = {
     .ary_push = rb_ary_push,
     .ary_new_from_args = rb_ary_new_from_args,
     .ary_unshift = rb_ary_unshift,
-    .array_len = rb_array_len,
-    .array_aref = RARRAY_AREF,
 
     .make_temporary_id = rb_make_temporary_id,
     .is_local_id = is_local_id2,
@@ -496,7 +494,6 @@ static const rb_parser_config_t rb_global_parser_config = {
     .rtest = rtest,
     .nil_p = nil_p,
     .qnil = Qnil,
-    .qtrue = Qtrue,
     .qfalse = Qfalse,
     .eArgError = arg_error,
     .long2int = rb_long2int,

rubyparser.h

@@ -1264,8 +1264,6 @@ typedef struct rb_parser_config_struct {
     VALUE (*ary_push)(VALUE ary, VALUE elem);
     VALUE (*ary_new_from_args)(long n, ...);
     VALUE (*ary_unshift)(VALUE ary, VALUE item);
-    long (*array_len)(VALUE a);
-    VALUE (*array_aref)(VALUE, long);
 
     /* Symbol */
     ID (*make_temporary_id)(size_t n);
@@ -1404,7 +1402,6 @@ typedef struct rb_parser_config_struct {
     int (*rtest)(VALUE obj);
     int (*nil_p)(VALUE obj);
     VALUE qnil;
-    VALUE qtrue;
     VALUE qfalse;
     VALUE (*eArgError)(void);
     int (*long2int)(long);

universal_parser.c

@@ -95,9 +95,6 @@
 #undef rb_ary_new_from_args
 #define rb_ary_new_from_args p->config->ary_new_from_args
 #define rb_ary_unshift       p->config->ary_unshift
-#undef RARRAY_LEN
-#define RARRAY_LEN           p->config->array_len
-#define RARRAY_AREF          p->config->array_aref
 
 #define rb_make_temporary_id     p->config->make_temporary_id
 #define is_local_id              p->config->is_local_id
@@ -229,8 +226,6 @@
 #define NIL_P p->config->nil_p
 #undef Qnil
 #define Qnil  p->config->qnil
-#undef Qtrue
-#define Qtrue p->config->qtrue
 #undef Qfalse
 #define Qfalse p->config->qfalse
 #define rb_eArgError p->config->eArgError()