util/kconfig: Remove miniconfig script

It replicates the functionality of savedefconfig because back when the
script was added, savedefconfig didn't work for us. It now does, is
the official way of doing things, is recommended in our documentation
and is also a fair bit faster.

Change-Id: Ia8e0377537ff7cd638c564037ea6a77b01a87243
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37150
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

util/kconfig/miniconfig

@@ -1,87 +0,0 @@
-#!/usr/bin/env bash
-#
-# miniconfig - utility to minimize your coreboot config files
-#
-# Copyright 2015 Google Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; version 2 of the License.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-
-CONFIG=$1
-NEWCONFIG=$2
-
-CONF=build/util/kconfig/conf
-KCONFIG=src/Kconfig
-DOTCONFIG=.config
-PREVCONFIG=.config.prev
-TMPCONFIG=.config.mini
-
-recreate_config()
-{
-	$CONF --olddefconfig $KCONFIG &> /dev/null
-}
-
-if [ "$CONFIG" == "" ]; then
-  printf "usage: util/miniconfig/miniconfig [path to config file] <path to new config file>\n"
-  exit 0
-fi
-
-if [ ! -r "$CONFIG" ]; then
-  printf "Can't read $CONFIG.\n"
-  exit 1
-fi
-
-if [ "$CONFIG" == .config ]; then
-  printf "Can't use .config, it's overwritten. Make a backup.\n"
-  exit 1
-fi
-
-if [ ! -x "$CONF" ]; then
-  printf "conf utility at $CONF not available.\n"
-  exit 1
-fi
-
-# Start out by creating a default config file for a mainboard
-VENDOR=$( grep ^CONFIG_VENDOR "$CONFIG" )
-BOARD=$( grep ^CONFIG_BOARD "$CONFIG" | grep -v ROMSIZE | grep -v SPECIFIC_OPTIONS )
-
-printf "$VENDOR\n$BOARD\n" > "$TMPCONFIG"
-cp "$TMPCONFIG" "$DOTCONFIG"
-recreate_config
-
-LINES=$( cat "$CONFIG" | wc -l )
-CUR=1
-
-# Now go through each line of the existing, large config file, add it to our
-# new minimal config file, and see if it makes a difference when running "make
-# olddefconfig". If it does, keep the line, otherwise discard it.
-
-cat "$CONFIG" | while read L; do
-  printf "\rProcessing $CONFIG - $CUR / $LINES (%d%%)" $(( $CUR * 100 / $LINES))
-  mv "$DOTCONFIG" "$PREVCONFIG"
-  cp "$TMPCONFIG" "$DOTCONFIG"
-  echo "$L" >> "$DOTCONFIG"
-  recreate_config
-
-  if ! diff -q "$DOTCONFIG" "$PREVCONFIG" > /dev/null; then
-    echo "$L" >> "$TMPCONFIG"
-  fi
-  CUR=$(( $CUR + 1 ))
-done
-
-echo
-
-if [ "$NEWCONFIG" != "" ]; then
-  printf "Writing new, minimized config to $NEWCONFIG\n"
-  mv "$TMPCONFIG" "$NEWCONFIG"
-else
-  printf "Overwriting $CONFIG with new, minimized config.\n"
-  mv "$TMPCONFIG" "$CONFIG"
-fi