Remove installation of shfmt in the build workflow

The new pre-commit hook provides `shfmt` binaries so we no longer need
to ensure it is installed.

Author: mcdonnnj

.github/workflows/build.yml

@@ -114,11 +114,6 @@ jobs:
           PACKAGE_URL: github.com/securego/gosec/v2/cmd/gosec
           PACKAGE_VERSION: ${{ steps.setup-env.outputs.gosec-version }}
         run: go install ${PACKAGE_URL}@${PACKAGE_VERSION}
-      - name: Install shfmt
-        env:
-          PACKAGE_URL: mvdan.cc/sh/v3/cmd/shfmt
-          PACKAGE_VERSION: ${{ steps.setup-env.outputs.shfmt-version }}
-        run: go install ${PACKAGE_URL}@${PACKAGE_VERSION}
       - name: Install staticcheck
         env:
           PACKAGE_URL: honnef.co/go/tools/cmd/staticcheck