remove docker files for PHP 5.4

docker/dev/mtt-php54-apache/Dockerfile

@@ -1,4 +0,0 @@
-
-FROM php:5.4-apache
-
-RUN docker-php-ext-install mysqli

docker/dev/mtt-php54-apache/docker-compose.yml

@@ -1,11 +0,0 @@
-version: '3'
-services:
-  web:
-    build: ./
-    image: mtt-php5.4-apache
-    container_name: mtt-php54-apache
-    ports:
-    - "8080:80"
-    volumes:
-    - ../../src:/var/www/html
-    - ./php-mtt.ini:/usr/local/etc/php/conf.d/php-mtt.ini

docker/dev/mtt-php54-apache/php-mtt.ini

@@ -1,6 +0,0 @@
-
-# Since PHP 5.4 E_STRICT is included in E_ALL
-error_reporting = E_ALL
-
-#log_errors = On
-#display_errors = On