Don't build-all for PRs

.circleci/config.yml

@@ -246,7 +246,7 @@ workflows:
   test-and-build:
     jobs:
       - build-all:
-          filters: *filter-not-release
+          filters: *filter-only-master
       - build-enterprise:
           filters: *filter-only-master
       - codespell:
@@ -270,9 +270,7 @@ workflows:
             - gometalinter
             - mysql-integration-test
             - postgres-integration-test
-          filters:
-           branches:
-             only: master
+          filters: *filter-only-master           
       - deploy-enterprise-master:
           requires:
             - build-all