udev-extraconf: remove hotplug rules and scripts

hotplug scripts had been broken since commit 523aea31bb7:
[
    Author: Luka Pivk <luka.pivk@toradex.com>
    Date:   Fri Mar 6 16:01:52 2020 +0100

    hostname: generate a uniqe hostname on boot

    This will generate a hostname based on machine name and serial number.
    (E.g. colibri-imx7-031111777)
    If serial number is not found it will say "no-serial-number" in host
    name.
    If machine is not supported hostname will include "unsupported-device"
    string.
    If /dev/device-tree does not exist it will say "recovery-mode"
    as it assumes its in recovery mode of Toradex Easy Installer

    To prevent openembedded from creating /etc/hostname file
    add hostname_pn-base-files = "" to configration

    Related-to: TEI-100, ELB-1322
    Signed-off-by: Luka Pivk <luka.pivk@toradex.com>
]

since the conditional checking for `uname -n` equals to machine name in
hotplug.sh are compeletely wrong, they would never match because the
output of `uname -n` now are machine names plus serial numers.

So let's drop them, which should be safe since nobody complaint that.

Signed-off-by: Ming Liu <ming.liu@toradex.com>

3 files changed, 0 insertions, 58 deletions

diff --git a/recipes-core/udev/files/hotplug.rules b/recipes-core/udev/files/hotplug.rules
deleted file mode 100644
index a36a47d..0000000
--- a/recipes-core/udev/files/hotplug.rules
+++ /dev/null
@@ -1,2 +0,0 @@
-# SD card hotplug configuration of read_ahead cache size
-KERNEL=="mmcblk?", ACTION=="add"    RUN+="/etc/udev/scripts/hotplug.sh"
diff --git a/recipes-core/udev/files/hotplug.sh b/recipes-core/udev/files/hotplug.sh
deleted file mode 100644
index 9d9fd89..0000000
--- a/recipes-core/udev/files/hotplug.sh
+++ /dev/null
@@ -1,44 +0,0 @@
-#!/bin/sh
-#
-# Called from udev
-#
-# Set the read_ahead cache size of SD card on hotplug
-
-SYSNAME=$(uname -n)
-DISKNUM=$(echo $DEVNAME | sed -e 's/\(^.*\)\(.$\)/\2/')
-DISKNAME=$(echo $DEVNAME | sed 's/.*\///g;s/p.*//g')
-CORES=$(cat /proc/cpuinfo | grep processor | wc -l)
-
-set_read_ahead_size () {
-	if [ $DISKNUM == "0" ]; then #eMMC
-		echo $1 > /sys/block/$DISKNAME/queue/read_ahead_kb
-	else #SD card
-		echo $2 > /sys/block/$DISKNAME/queue/read_ahead_kb
-	fi
-}
-
-if [ "$ACTION" = "add" ] && [ -n "$DEVNAME" ] && [ "$DEVTYPE" = "disk" ]; then
-	#Set read_ahead cache of mmcblk? SD card
-	if test -e /sys/block/$DISKNAME/queue/read_ahead_kb
-	then
-		if [ $SYSNAME == "colibri-imx6" ]; then
-			if [ $CORES -eq 1 ]; then #imx6s
-				set_read_ahead_size 512 512
-			else #imx6dl
-				set_read_ahead_size 1024 512
-			fi
-		elif [ $SYSNAME == "apalis-imx6" ]; then
-			if [ $CORES -eq 2 ]; then #imx6d
-				set_read_ahead_size 1024 512
-			else #imx6q
-				set_read_ahead_size 1024 512
-			fi
-		elif [ $SYSNAME == "apalis-tk1" ]; then
-			set_read_ahead_size 4096 1024
-		else
-			logger "sd_hotplug.sh" "System name not compatible"
-		fi
-	else
-		logger "sd_hotplug" "No read_ahead_kb configuration file found"
-    fi
-fi
diff --git a/recipes-core/udev/udev-extraconf_%.bbappend b/recipes-core/udev/udev-extraconf_%.bbappend
index 0a380a8..fe459da 100644
--- a/recipes-core/udev/udev-extraconf_%.bbappend
+++ b/recipes-core/udev/udev-extraconf_%.bbappend
@@ -1,13 +1 @@
 FILESEXTRAPATHS:prepend := "${THISDIR}/files/:"
-
-SRC_URI:append:tdx = " file://hotplug.rules \
-                       file://hotplug.sh \
-"
-
-do_install:append:tdx () {
-    install -d ${D}${sysconfdir}/udev/rules.d
-    install -m 0644 ${WORKDIR}/hotplug.rules    ${D}${sysconfdir}/udev/rules.d/hotplug.rules
-
-    install -d ${D}${sysconfdir}/udev/scripts/
-    install -m 0755 ${WORKDIR}/hotplug.sh ${D}${sysconfdir}/udev/scripts/hotplug.sh
-}