CI: Do not build the APK

Only build the AAB, since it's all we're uploading. Earlier the apk was
still useful as I was downloading it for manual testing, but now all
testing is done by downloading the release from the app store in a
Closed Testing List.

.circleci/config.yml

@@ -32,9 +32,6 @@ jobs:
       - store_artifacts:
           path: build/app/outputs/bundle/prodRelease/app.aab
           destination: gitjournal.aab
-      - store_artifacts:
-          path: build/app/outputs/apk/prod/release/app-prod-release.apk
-          destination: gitjournal.apk
       - run:
           name: Upload Crashlytics Symbols
           command: ./scripts/android_crashlytics.sh

scripts/build.sh

@@ -1,9 +1,8 @@
 #!/usr/bin/env bash
 
-set -eu
+set -eux
 
 BUILD_NUM=`git rev-list --count HEAD`
 echo "Build Number: $BUILD_NUM"
 
 flutter build appbundle --flavor prod --build-number=$BUILD_NUM --verbose
-flutter build apk --flavor prod --build-number=$BUILD_NUM --verbose