mariadb: Drop unused rundir fix socket dir perms

We had been creating "rundir" but it was never used, probably leftover
from some removed function. At the same time, we were setting quite
strict rights to the socket directory (while comments sugested
otherwise).

Signed-off-by: Michal Hrusecky <michal@hrusecky.net>
(cherry picked from commit 8f6831b64b)

utils/mariadb/files/mysqld.init

@@ -67,7 +67,6 @@ mysqld_status() {
 start_service() {
 	conf=/etc/mysql/my.cnf
 	logdir=/var/log/mysql
-	rundir=/var/run/mysqld
 	version="$(mysqld --version | sed -n 's|.*Ver[[:blank:]]*\([0-9.]*\)-.*|\1|p')"
 
 	# Few basic checks
@@ -134,14 +133,11 @@ start_service() {
 	fi
 
 	# Make sure all required directories exists and have correct rights
-	for i in "$logdir" "$rundir" "$sockdir"; do
+	for i in "$logdir" "$sockdir"; do
 		opts="-m 0750"
 		if ! [ -e "$i" ]; then
-			# $rundir needs to be accessible for
-			# clients
-			if [ "$i" = "$rundir" ]; then
-				opts=
-			fi
+			# $sockdir needs to be accessible for clients
+			[ "$i" = "$sockdir" ] && opts="-m 0755"
 			# shellcheck disable=SC2086
 			mkdir -p $opts "$i"
 		fi