Streamline local test on CI. (#160)

.bazelci/presubmit.yml

diff --git a/.bazelci/presubmit.yml b/.bazelci/presubmit.yml
index f4c29e6..d3134e9 100644
--- a/.bazelci/presubmit.yml
+++ b/.bazelci/presubmit.yml
@@ -2,43 +2,15 @@
 platforms:
   ubuntu1404:
     test_targets:
-    - "//test/configs:debian-jessie-autoconfig_test"
     - "//test/configs:debian-jessie-bazel-head-autoconfig_test"
-    - "//test/configs:debian-jessie-custom-bazel-rc-version-autoconfig_test"
-    - "//test/configs:ubuntu-xenial-autoconfig_test"
     - "//test/configs:ubuntu-xenial-bazel-head-autoconfig_test"
-    - "//test/configs:ubuntu-xenial-custom-bazel-rc-version-autoconfig_test"
-    - "//test/configs:debian8_clang_autoconfig_test"
-    - "//configs/debian8_clang:debian8-clang-0.3.0-bazel_0.15.0-autoconfig_test"
-    - "//configs/debian8_clang:msan-debian8-clang-0.3.0-bazel_0.15.0-autoconfig_test"
-    - "//configs/ubuntu16_04_clang:ubuntu16_04-clang-1.0-bazel_0.15.0-autoconfig_test"
-    - "//configs/ubuntu16_04_clang:msan-ubuntu16_04-clang-1.0-bazel_0.15.0-autoconfig_test"
-    - "//container/debian8/builders/rbe-debian8:toolchain-test"
-    - "//container/ubuntu16_04/builders/rbe-ubuntu16_04:toolchain-test"
-    - "//container/experimental/rbe-debian9:toolchain-test"
-    - "//container/ubuntu16_04/builders/bazel:bazel_0.15.0-test"
-    - "//container/ubuntu16_04/builders/bazel_docker_gcloud:bazel_0.15.0_docker_gcloud-test"
     test_flags:
     - "--test_output=errors"
     - "--verbose_failures"
   ubuntu1604:
     test_targets:
-    - "//test/configs:debian-jessie-autoconfig_test"
     - "//test/configs:debian-jessie-bazel-head-autoconfig_test"
-    - "//test/configs:debian-jessie-custom-bazel-rc-version-autoconfig_test"
-    - "//test/configs:ubuntu-xenial-autoconfig_test"
     - "//test/configs:ubuntu-xenial-bazel-head-autoconfig_test"
-    - "//test/configs:ubuntu-xenial-custom-bazel-rc-version-autoconfig_test"
-    - "//test/configs:debian8_clang_autoconfig_test"
-    - "//configs/debian8_clang:debian8-clang-0.3.0-bazel_0.15.0-autoconfig_test"
-    - "//configs/debian8_clang:msan-debian8-clang-0.3.0-bazel_0.15.0-autoconfig_test"
-    - "//configs/ubuntu16_04_clang:ubuntu16_04-clang-1.0-bazel_0.15.0-autoconfig_test"
-    - "//configs/ubuntu16_04_clang:msan-ubuntu16_04-clang-1.0-bazel_0.15.0-autoconfig_test"
-    - "//container/debian8/builders/rbe-debian8:toolchain-test"
-    - "//container/ubuntu16_04/builders/rbe-ubuntu16_04:toolchain-test"
-    - "//container/experimental/rbe-debian9:toolchain-test"
-    - "//container/ubuntu16_04/builders/bazel:bazel_0.15.0-test"
-    - "//container/ubuntu16_04/builders/bazel_docker_gcloud:bazel_0.15.0_docker_gcloud-test"
     test_flags:
     - "--test_output=errors"
     - "--verbose_failures"