chore(util):修改zookeeper的构建Dockerfile

baseimg/zookeeper/Dockerfile

@@ -46,16 +46,9 @@ ARG DISTRO_NAME=zookeeper-3.4.8
 # Download Apache Zookeeper, verify its PGP signature, untar and clean up
 RUN set -ex; \
     wget -q "http://www.apache.org/dist/zookeeper/$DISTRO_NAME/$DISTRO_NAME.tar.gz"; \
-    wget -q "http://www.apache.org/dist/zookeeper/$DISTRO_NAME/$DISTRO_NAME.tar.gz.asc"; \
-    export GNUPGHOME="$(mktemp -d)"; \
-    gpg --keyserver ha.pool.sks-keyservers.net --recv-key "$GPG_KEY" || \
-    gpg --keyserver pgp.mit.edu --recv-keys "$GPG_KEY" || \
-    gpg --keyserver keyserver.pgp.com --recv-keys "$GPG_KEY"; \
-    gpg --batch --verify "$DISTRO_NAME.tar.gz.asc" "$DISTRO_NAME.tar.gz"; \
     tar -xzf "$DISTRO_NAME.tar.gz"; \
     mv "$DISTRO_NAME/conf/"* "$ZOO_CONF_DIR"; \
-    rm -rf "$GNUPGHOME" "$DISTRO_NAME.tar.gz" "$DISTRO_NAME.tar.gz.asc"; \
-    apk del .build-deps
+    rm -rf "$GNUPGHOME" "$DISTRO_NAME.tar.gz"
 
 WORKDIR $DISTRO_NAME
 VOLUME ["$ZOO_DATA_DIR", "$ZOO_DATA_LOG_DIR"]