Remove unnecessary commands

Author: aminvakil

Dockerfile

@@ -1,10 +1,8 @@
 FROM alpine:3
 
 # hadolint ignore=DL3018
-RUN apk update --no-cache \
- && apk add --no-cache openssh-client openssh-keygen shadow pacman pacman-makepkg \
- runuser git grep binutils gcc \
- && rm -rf /var/cache/apk/*
+RUN apk add --no-cache openssh-client openssh-keygen shadow pacman pacman-makepkg \
+ runuser git grep binutils gcc
 
 COPY entrypoint.sh /entrypoint.sh
 COPY build.sh /build.sh