Reducing the circleci footprint

* Removed the parallelism as it was running the same tests 3 times
* Removed caching as the time to cache/restore is about the same
  as without caching

Signed-off-by: Matt Farina <matt@mattfarina.com>

.circleci/config.yml

@@ -4,7 +4,6 @@ version: 2
 jobs:
   build:
     working_directory: ~/helm.sh/helm
-    parallelism: 3
     docker:
       - image: circleci/golang:1.13
 
@@ -13,27 +12,12 @@ jobs:
 
     steps:
       - checkout
-      - restore_cache:
-          keys:
-            - gomod-{{ checksum "go.mod" }}
-            - gomod-
-      - restore_cache:
-          keys:
-            - build-cache-{{ .Environment.CIRCLE_PREVIOUS_BUILD_NUM }}
       - run:
           name: test style
           command: make test-style
       - run:
           name: test
           command: make test-coverage
-      - save_cache:
-          key: gomod-{{ checksum "go.mod" }}
-          paths:
-            - /go/pkg/mod
-      - save_cache:
-          key: build-cache-{{ .Environment.CIRCLE_BUILD_NUM }}
-          paths:
-            - /tmp/go/cache
       - deploy:
           name: deploy
           command: .circleci/deploy.sh