Removed build dependency on NDK.

.github/workflows/main.yml

@@ -17,7 +17,6 @@ jobs:
     - name: Build with Gradle
       run: |
         mkdir -p /home/runner/.android && touch /home/runner/.android/repositories.cfg
-        echo y | sudo ${ANDROID_HOME}/tools/bin/sdkmanager ndk-bundle 'ndk;21.3.6528147'
         ./gradlew assembleDebug
     - name: Create release
       uses: eine/tip@gha-tip

.travis.yml

@@ -20,7 +20,6 @@ cache:
     - "$HOME/.android/build-cache"
 
 before_install:
-  - yes | sdkmanager ndk-bundle 'ndk;21.3.6528147'
   - openssl aes-256-cbc -K $encrypted_532b6bc7108c_key -iv $encrypted_532b6bc7108c_iv -in dist/apognu.jks.enc -out dist/apognu.jks -d
   - echo -e "signing.store=/home/travis/build/apognu/otter/dist/apognu.jks\nsigning.key_passphrase=${keystore_passphrase}\nsigning.alias=release\nsigning.store_passphrase=${keystore_passphrase}" > local.properties