config: remove ZFS_GLOBAL_ZONE_PAGE_STATE and ZFS_ENUM_* generation

Sponsored-by: https://despairlabs.com/sponsor/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Tino Reichardt <milky-zfs@mcmilk.de>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #16479

scripts/Makefile.am

@@ -28,7 +28,6 @@ endif
 
 dist_noinst_DATA += \
 	%D%/cstyle.pl \
-	%D%/enum-extract.pl \
 	%D%/update_authors.pl \
 	%D%/zfs2zol-patch.sed \
 	%D%/zol2zfs-patch.sed

scripts/enum-extract.pl

@@ -1,58 +0,0 @@
-#!/usr/bin/env perl
-
-my $usage = <<EOT;
-usage: config-enum enum [file ...]
-
-Returns the elements from an enum declaration.
-
-"Best effort": we're not building an entire C interpreter here!
-EOT
-
-use warnings;
-use strict;
-use Getopt::Std;
-
-my %opts;
-
-if (!getopts("", \%opts) || @ARGV < 1) {
-	print $usage;
-	exit 2;
-}
-
-my $enum = shift;
-
-my $in_enum = 0;
-
-while (<>) {
-	# comments
-	s/\/\*.*\*\///;
-	if (m/\/\*/) {
-		while ($_ .= <>) {
-			last if s/\/\*.*\*\///s;
-		}
-	}
-
-	# preprocessor stuff
-	next if /^#/;
-
-	# find our enum
-	$in_enum = 1 if s/^\s*enum\s+${enum}(?:\s|$)//;
-	next unless $in_enum;
-
-	# remove explicit values
-	s/\s*=[^,]+,/,/g;
-
-	# extract each identifier
-	while (m/\b([a-z_][a-z0-9_]*)\b/ig) {
-		print $1, "\n";
-	}
-
-	#
-	# don't exit: there may be multiple versions of the same enum, e.g.
-	# inside different #ifdef blocks. Let's explicitly return all of
-	# them and let external tooling deal with it.
-	#
-	$in_enum = 0 if m/}\s*;/;
-}
-
-exit 0;