fix: remove non c86 packages from the build

Jenkinsfile

@@ -411,6 +411,7 @@ pipeline {
         PATH = "${env.PATH}:${env.WORKSPACE}/bin"
         HOME = "${env.WORKSPACE}"
         GOPATH = "${env.WORKSPACE}"
+        SNAPSHOT="true"
       }
       when {
         beforeAgent true

script/jenkins/package.sh

@@ -1,9 +1,4 @@
 #!/usr/bin/env bash
 set -euox pipefail
 
-# This controls the defaults used the Jenkins package job. They can be
-# overridden by setting them in the environement prior to running this script.
-export SNAPSHOT="${SNAPSHOT:-true}"
-#export PLATFORMS="${PLATFORMS:-+linux/armv7 +linux/ppc64le +linux/s390x +linux/mips64}"
-
 mage -debug package