Remove all MAX_BACKUP affiliated variables in the project

pica-backup/mysql-run.sh

@@ -31,7 +31,6 @@ rm -f "/$backup_script_name"
 
 cat <<EOF >> "/$backup_script_name"
 #!/bin/bash
-MAX_BACKUPS=${MAX_BACKUPS}
 
 BACKUP_NAME=\$(date +\%Y.\%m.\%d.\%H\%M\%S).sql
 

pica-backup/postgres-run.sh

@@ -20,7 +20,6 @@ rm -f "/$backup_script_name"
 
 cat <<EOF >> "/$backup_script_name"
 #!/bin/bash
-MAX_BACKUPS=${MAX_BACKUPS}
 export PGHOST=$POSTGRES_HOST
 export PGPORT=$POSTGRES_PORT
 export PGDATABASE=$POSTGRES_DB

pica-backup/run.sh

@@ -9,7 +9,6 @@
 # MYSQL_USER_LIST		POSTGRES_USER_LIST
 # MYSQL_PASS_LIST		POSTGRES_PASS_LIST
 # MYSQL_DB_LIST			POSTGRES_DB_LIST
-# MYSQL_MAX_BACKUP_LIST		POSTGRES_MAX_BACKUP_LIST
 # MYSQL_INIT_BACKUP_LIST	POSTGRES_INIT_BACKUP_LIST
 # MYSQL_CRON_TIME_LIST		POSTGRES_CRON_TIME_LIST
 # MYSQL_EXTRA_OPTS_LIST		POSTGRES_EXTRA_OPTS-LIST
@@ -27,7 +26,6 @@ read -a MYSQL_PORT_ARRAY <<< "$MYSQL_PORT_LIST"
 read -a MYSQL_USER_ARRAY <<< "$MYSQL_USER_LIST"
 read -a MYSQL_PASS_ARRAY <<< "$MYSQL_PASS_LIST"
 read -a MYSQL_DB_ARRAY <<< "$MYSQL_DB_LIST"
-read -a MYSQL_MAX_BACKUPS_ARRAY <<< "$MYSQL_MAX_BACKUPS_LIST"
 read -a MYSQL_INIT_BACKUP_ARRAY <<< "$MYSQL_INIT_BACKUP_LIST"
 read -a MYSQL_CRON_TIME_ARRAY <<< "$MYSQL_CRON_TIME_LIST"
 read -a MYSQL_EXTRA_OPTS_ARRAY <<< "$MYSQL_EXTRA_OPTS_LIST"
@@ -40,7 +38,6 @@ read -a POSTGRES_PORT_ARRAY <<< "$POSTGRES_PORT_LIST"
 read -a POSTGRES_USER_ARRAY <<< "$POSTGRES_USER_LIST"
 read -a POSTGRES_PASS_ARRAY <<< "$POSTGRES_PASS_LIST"
 read -a POSTGRES_DB_ARRAY <<< "$POSTGRES_DB_LIST"
-read -a POSTGRES_MAX_BACKUPS_ARRAY <<< "$POSTGRES_MAX_BACKUPS_LIST"
 read -a POSTGRES_INIT_BACKUP_ARRAY <<< "$POSTGRES_INIT_BACKUP_LIST"
 read -a POSTGRES_CRON_TIME_ARRAY <<< "$POSTGRES_CRON_TIME_LIST"
 read -a POSTGRES_EXTRA_OPTS_ARRAY <<< "$POSTGRES_EXTRA_OPTS_LIST"
@@ -63,7 +60,6 @@ do
 	MYSQL_USER=${MYSQL_USER_ARRAY[i]} \
 	MYSQL_PASS=${MYSQL_PASS_ARRAY[i]} \
 	MYSQL_DB=${MYSQL_DB_ARRAY[i]} \
-	MAX_BACKUPS=${MYSQL_MAX_BACKUPS_ARRAY[i]} \
 	INIT_BACKUP=${MYSQL_INIT_BACKUP_ARRAY[i]} \
 	CRON_TIME=${MYSQL_CRON_TIME_ARRAY[i]} \
 	EXTRA_OPTS=${MYSQL_EXTRA_OPTS_ARRAY[i]} \
@@ -82,7 +78,6 @@ do
 	POSTGRES_USER=${POSTGRES_USER_ARRAY[i]} \
 	POSTGRES_PASS=${POSTGRES_PASS_ARRAY[i]} \
 	POSTGRES_DB=${POSTGRES_DB_ARRAY[i]} \
-	MAX_BACKUPS=${POSTGRES_MAX_BACKUP_ARRAY[i]} \
 	INIT_BACKUP=${POSTGRES_INIT_BACKUP_ARRAY[i]} \
 	CRON_TIME=${POSTGRES_CRON_TIME_ARRAY[i]} \
 	EXTRA_OPTS=${POSTGRES_EXTRA_OPTS_ARRAY[i]} \