dracut-module-setup: remove dead source_ifcfg_file

With the NetworkManager rewrite this function in no longer used. This
also allows to remove a lot of dead code in kdump-lib.

Signed-off-by: Philipp Rudo <prudo@redhat.com>
Reviewed-by: Coiby Xu <coxu@redhat.com>

dracut-module-setup.sh

@@ -91,19 +91,6 @@ kdump_is_vlan() {
     [[ -f /proc/net/vlan/"$1" ]]
 }
 
-# $1: netdev name
-source_ifcfg_file() {
-    local ifcfg_file
-
-    dwarning "Network Scripts are deprecated. You are encouraged to set up network by NetworkManager."
-    ifcfg_file=$(get_ifcfg_filename "$1")
-    if [[ -f ${ifcfg_file} ]]; then
-        . "${ifcfg_file}"
-    else
-        dwarning "The ifcfg file of $1 is not found!"
-    fi
-}
-
 # $1: repeat times
 # $2: string to be repeated
 # $3: separator

kdump-lib.sh

@@ -292,18 +292,6 @@ is_hostname()
 	echo "$1" | grep -q "[a-zA-Z]"
 }
 
-# Copied from "/etc/sysconfig/network-scripts/network-functions"
-get_hwaddr()
-{
-	if [[ -f "/sys/class/net/$1/address" ]]; then
-		awk '{ print toupper($0) }' < "/sys/class/net/$1/address"
-	elif [[ -d "/sys/class/net/$1" ]]; then
-		LC_ALL="" LANG="" ip -o link show "$1" 2> /dev/null |
-			awk '{ print toupper(gensub(/.*link\/[^ ]* ([[:alnum:]:]*).*/,
-                                        "\\1", 1)); }'
-	fi
-}
-
 # Get value by a field using "nmcli -g"
 # Usage: get_nmcli_value_by_field <field> <nmcli command>
 #
@@ -339,98 +327,6 @@ get_nmcli_connection_apath_by_ifname()
 	get_nmcli_value_by_field "GENERAL.CON-PATH" device show "$_ifname"
 }
 
-get_ifcfg_by_device()
-{
-	grep -E -i -l "^[[:space:]]*DEVICE=\"*${1}\"*[[:space:]]*$" \
-		/etc/sysconfig/network-scripts/ifcfg-* 2> /dev/null | head -1
-}
-
-get_ifcfg_by_hwaddr()
-{
-	grep -E -i -l "^[[:space:]]*HWADDR=\"*${1}\"*[[:space:]]*$" \
-		/etc/sysconfig/network-scripts/ifcfg-* 2> /dev/null | head -1
-}
-
-get_ifcfg_by_uuid()
-{
-	grep -E -i -l "^[[:space:]]*UUID=\"*${1}\"*[[:space:]]*$" \
-		/etc/sysconfig/network-scripts/ifcfg-* 2> /dev/null | head -1
-}
-
-get_ifcfg_by_name()
-{
-	grep -E -i -l "^[[:space:]]*NAME=\"*${1}\"*[[:space:]]*$" \
-		/etc/sysconfig/network-scripts/ifcfg-* 2> /dev/null | head -1
-}
-
-is_nm_running()
-{
-	[[ "$(LANG=C nmcli -t --fields running general status 2> /dev/null)" == "running" ]]
-}
-
-is_nm_handling()
-{
-	LANG=C nmcli -t --fields device,state dev status 2> /dev/null |
-		grep -q "^\(${1}:connected\)\|\(${1}:connecting.*\)$"
-}
-
-# $1: netdev name
-get_ifcfg_nmcli()
-{
-	local nm_uuid nm_name
-	local ifcfg_file
-
-	# Get the active nmcli config name of $1
-	if is_nm_running && is_nm_handling "${1}"; then
-		# The configuration "uuid" and "name" generated by nm is wrote to
-		# the ifcfg file as "UUID=<nm_uuid>" and "NAME=<nm_name>".
-		nm_uuid=$(LANG=C nmcli -t --fields uuid,device c show --active 2> /dev/null |
-			grep "${1}" | head -1 | cut -d':' -f1)
-		nm_name=$(LANG=C nmcli -t --fields name,device c show --active 2> /dev/null |
-			grep "${1}" | head -1 | cut -d':' -f1)
-		ifcfg_file=$(get_ifcfg_by_uuid "${nm_uuid}")
-		[[ -z ${ifcfg_file} ]] && ifcfg_file=$(get_ifcfg_by_name "${nm_name}")
-	fi
-
-	echo -n "${ifcfg_file}"
-}
-
-# $1: netdev name
-get_ifcfg_legacy()
-{
-	local ifcfg_file hwaddr
-
-	ifcfg_file="/etc/sysconfig/network-scripts/ifcfg-${1}"
-	[[ -f ${ifcfg_file} ]] && echo -n "${ifcfg_file}" && return
-
-	ifcfg_file=$(get_ifcfg_by_name "${1}")
-	[[ -f ${ifcfg_file} ]] && echo -n "${ifcfg_file}" && return
-
-	hwaddr=$(get_hwaddr "${1}")
-	if [[ -n $hwaddr ]]; then
-		ifcfg_file=$(get_ifcfg_by_hwaddr "${hwaddr}")
-		[[ -f ${ifcfg_file} ]] && echo -n "${ifcfg_file}" && return
-	fi
-
-	ifcfg_file=$(get_ifcfg_by_device "${1}")
-
-	echo -n "${ifcfg_file}"
-}
-
-# $1: netdev name
-# Return the ifcfg file whole name(including the path) of $1 if any.
-get_ifcfg_filename()
-{
-	local ifcfg_file
-
-	ifcfg_file=$(get_ifcfg_nmcli "${1}")
-	if [[ -z ${ifcfg_file} ]]; then
-		ifcfg_file=$(get_ifcfg_legacy "${1}")
-	fi
-
-	echo -n "${ifcfg_file}"
-}
-
 # returns 0 when omission of a module is desired in dracut_args
 # returns 1 otherwise
 is_dracut_mod_omitted()