Remove buildtest.yml

Signed-off-by: Chris Cummer <chriscummer@me.com>

.github/workflows/buildtest.yml

@@ -1,24 +0,0 @@
-name: Build Test
-on: [push, pull_request]
-jobs:
-  build:
-    name: Build
-    runs-on: ubuntu-latest
-    steps:
-      - name: Set up Go 1.14
-        uses: actions/setup-go@v1
-        with:
-          go-version: 1.13
-
-      - name: Check out source code
-        uses: actions/checkout@v1
-
-      - name: Build
-				env:
-					GOPROXY: "https://proxy.golang.org"
-        run: go build .
-
-      - name: Test
-				env:
-					GOPROXY: "https://proxy.golang.org"
-        run: go test -v .