kbuild: remove checkconfig.pl

checkconfig.pl is no longer needed now that autoconf.h is automatically
included.  Remove it and all references to it.
Signed-off-by: Brian Gerst <bgerst@didntduck.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Documentation/smart-config.txt

@@ -56,10 +56,6 @@ Here is the solution:
     writing one file per option.  It updates only the files for options
     that have changed.
 
-    mkdep.c no longer generates warning messages for missing or unneeded
-    <linux/config.h> lines.  The new top-level target 'make checkconfig'
-    checks for these problems.
-
 Flag Dependencies
 
     Martin Von Loewis contributed another feature to this patch:

drivers/video/matrox/matroxfb_DAC1064.c

@@ -12,7 +12,6 @@
  *
  */
 
-/* make checkconfig does not walk through include tree :-( */
 #include <linux/config.h>
 
 #include "matroxfb_DAC1064.h"

drivers/video/matrox/matroxfb_DAC1064.h

 #ifndef __MATROXFB_DAC1064_H__
 #define __MATROXFB_DAC1064_H__
 
-/* make checkconfig does not walk through include tree */
 #include <linux/config.h>
 
 #include "matroxfb_base.h"

drivers/video/matrox/matroxfb_Ti3026.c

@@ -78,7 +78,6 @@
  *
  */
 
-/* make checkconfig does not verify included files... */
 #include <linux/config.h>
 
 #include "matroxfb_Ti3026.h"

drivers/video/matrox/matroxfb_Ti3026.h

 #ifndef __MATROXFB_TI3026_H__
 #define __MATROXFB_TI3026_H__
 
-/* make checkconfig does not walk through whole include tree */
 #include <linux/config.h>
 
 #include "matroxfb_base.h"

drivers/video/matrox/matroxfb_base.c

@@ -99,7 +99,6 @@
  *
  */
 
-/* make checkconfig does not check included files... */
 #include <linux/config.h>
 #include <linux/version.h>
 

drivers/video/matrox/matroxfb_misc.c

@@ -84,7 +84,6 @@
  *
  */
 
-/* make checkconfig does not check includes for this... */
 #include <linux/config.h>
 
 #include "matroxfb_misc.h"

scripts/checkconfig.pl

-#! /usr/bin/perl
-#
-# checkconfig: find uses of CONFIG_* names without matching definitions.
-# Copyright abandoned, 1998, Michael Elizabeth Chastain <mailto:mec@shout.net>.
-
-use integer;
-
-$| = 1;
-
-foreach $file (@ARGV)
-{
-    # Open this file.
-    open(FILE, $file) || die "Can't open $file: $!\n";
-
-    # Initialize variables.
-    my $fInComment   = 0;
-    my $fInString    = 0;
-    my $fUseConfig   = 0;
-    my $iLinuxConfig = 0;
-    my %configList   = ();
-
-    LINE: while ( <FILE> )
-    {
-	# Strip comments.
-	$fInComment && (s+^.*?\*/+ +o ? ($fInComment = 0) : next);
-	m+/\*+o && (s+/\*.*?\*/+ +go, (s+/\*.*$+ +o && ($fInComment = 1)));
-
-	# Pick up definitions.
-	if ( m/^\s*#/o )
-	{
-	    $iLinuxConfig      = $. if m/^\s*#\s*include\s*"linux\/config\.h"/o;
-	    $configList{uc $1} = 1  if m/^\s*#\s*include\s*"config\/(\S*)\.h"/o;
-	}
-
-	# Strip strings.
-	$fInString && (s+^.*?"+ +o ? ($fInString = 0) : next);
-	m+"+o && (s+".*?"+ +go, (s+".*$+ +o && ($fInString = 1)));
-
-	# Pick up definitions.
-	if ( m/^\s*#/o )
-	{
-	    $iLinuxConfig      = $. if m/^\s*#\s*include\s*<linux\/config\.h>/o;
-	    $configList{uc $1} = 1  if m/^\s*#\s*include\s*<config\/(\S*)\.h>/o;
-	    $configList{$1}    = 1  if m/^\s*#\s*define\s+CONFIG_(\w*)/o;
-	    $configList{$1}    = 1  if m/^\s*#\s*undef\s+CONFIG_(\w*)/o;
-	}
-
-	# Look for usages.
-	next unless m/CONFIG_/o;
-	WORD: while ( m/\bCONFIG_(\w+)/og )
-	{
-	    $fUseConfig = 1;
-	    last LINE if $iLinuxConfig;
-	    next WORD if exists $configList{$1};
-	    print "$file: $.: need CONFIG_$1.\n";
-	    $configList{$1} = 0;
-	}
-    }
-
-    # Report superfluous includes.
-    if ( $iLinuxConfig && ! $fUseConfig )
-	{ print "$file: $iLinuxConfig: linux/config.h not needed.\n"; }
-
-    close(FILE);
-}