Docker - do not install "zip" package

.docker/config/Dockerfile

@@ -7,9 +7,7 @@ RUN apt-get update \
     && apt-get install -y --no-install-recommends \
         vim \
         git \
-        zip \
         unzip \
-        zlib1g-dev \
         libicu-dev \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
@@ -18,7 +16,6 @@ RUN apt-get update \
 # PHP extensions
 #
 RUN docker-php-ext-install \
-    zip \
     intl \
     mbstring