dropping 1.7 because its super old and doesnt want to cooperate

.github/workflows/go.yml

@@ -41,7 +41,7 @@ jobs:
  runs-on: ubuntu-latest
  strategy:
  matrix:
- go: [ '1.12', '1.11', '1.10', '1.9', '1.8', '1.7']
+ go: [ '1.12', '1.11', '1.10', '1.9', '1.8']
  steps:
 
  - name: Build ${{ matrix.go }}