refactor: remove mobile sender product path (#119)

.github/workflows/android-sender.yml

@@ -1,34 +0,0 @@
-name: Android sender compile
-
-on:
-  workflow_dispatch:
-  pull_request:
-    paths:
-      - "android/sender/**"
-      - ".github/workflows/android-sender.yml"
-  push:
-    branches:
-      - main
-    paths:
-      - "android/sender/**"
-      - ".github/workflows/android-sender.yml"
-
-permissions:
-  contents: read
-
-jobs:
-  compile:
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-    steps:
-      - name: Check out repository
-        uses: actions/checkout@v6
-      - name: Set up Java
-        uses: actions/setup-java@v5
-        with:
-          distribution: temurin
-          java-version: "17"
-      - name: Test protocol core
-        run: ./android/sender/gradlew -p android/sender -PprotocolOnly=true :protocol:test --no-daemon
-      - name: Compile debug APK
-        run: ./android/sender/gradlew -p android/sender :app:assembleDebug --no-daemon