Delete docker/5.6-apache

docker/5.6-apache

@@ -1,22 +0,0 @@
-FROM php:5.6-apache
-# Update stretch repositories
-RUN sed -i -e 's/deb.debian.org/archive.debian.org/g' \
-        -e 's|security.debian.org|archive.debian.org/|g' \
-        -e '/stretch-updates/d' /etc/apt/sources.list && \
-	apt-get update && \
-	apt-get install -y \
-        libfreetype6-dev \
-        libjpeg62-turbo-dev \
-        libpng-dev \
-        libzip-dev \
-        zlib1g-dev \
-        vim \
-        libicu-dev && \
-        docker-php-ext-configure intl && \
-        docker-php-ext-install intl && \
-        docker-php-ext-install -j$(nproc) gd && \
-        apt-get install --no-install-recommends --assume-yes --quiet ca-certificates curl git && \
-        docker-php-ext-install mysqli zip pdo_mysql bcmath opcache && \
-        mkdir /var/www/sessions && \
-        chmod 777 /var/www/sessions
-RUN a2enmod rewrite