Remove useless git from image, 15MB less to download

Author: andypost

Dockerfile

@@ -26,6 +26,7 @@ RUN apk add --no-cache \
   && ln -s /root/.composer/vendor/drupal/coder/coder_sniffer/DrupalPractice /root/.composer/vendor/squizlabs/php_codesniffer/CodeSniffer/Standards/DrupalPractice \
   && git clone --branch master https://git.drupal.org/sandbox/coltrane/1921926.git /root/drupalsecure_code_sniffs \
   && cd /root/drupalsecure_code_sniffs && curl https://www.drupal.org/files/issues/parenthesis_closer_notice-2320623-2.patch | git apply && cd \
+  && apk del --no-cache git \
   && ln -s /root/drupalsecure_code_sniffs/DrupalSecure /root/.composer/vendor/squizlabs/php_codesniffer/CodeSniffer/Standards/DrupalSecure
 
 VOLUME /work