Update Dockerfile, fix comment.

Author: s4shyam95

all_components/Dockerfile

@@ -30,8 +30,9 @@ RUN if [ `uname -m` = 'x86_64' ]; then echo -n "x86_64" > /tmp/arch; else echo -
     fi && \
     curl -O "${SDK_URL}" && \
     tar xzf "${SDK_TAR}" && \
-    rm "${SDK_TAR}" && \
-    echo -n "anthoscli app-engine-java app-engine-python alpha beta pubsub-emulator cloud-datastore-emulator app-engine-go bigtable cbt app-engine-python-extras kubectl gke-gcloud-auth-plugin kustomize minikube skaffold kpt local-extract cloud-sql-proxy docker-credential-gcr package-go-module cloud-firestore-emulator cloud-run-proxy log-streaming managed-flink-client terraform-tools config-connector enterprise-certificate-proxy istioctl kubectl-oidc pkg" > /tmp/additional_components && \ # These components are not available on ARM right now.
+    rm "${SDK_TAR}"
+# These components are not available on ARM right now.
+RUN echo -n "anthoscli app-engine-java app-engine-python alpha beta pubsub-emulator cloud-datastore-emulator app-engine-go bigtable cbt app-engine-python-extras kubectl gke-gcloud-auth-plugin kustomize minikube skaffold kpt local-extract cloud-sql-proxy docker-credential-gcr package-go-module cloud-firestore-emulator cloud-run-proxy log-streaming managed-flink-client terraform-tools config-connector enterprise-certificate-proxy istioctl kubectl-oidc pkg" > /tmp/additional_components && \
     if [ `uname -m` = 'x86_64' ]; then echo -n " nomos anthos-auth cloud-spanner-emulator spanner-migration-tool" >> /tmp/additional_components; fi && \
     /google-cloud-sdk/install.sh --bash-completion=false --path-update=true --usage-reporting=false --additional-components `cat /tmp/additional_components` && \
     rm -rf /google-cloud-sdk/.install/.backup