remove unnecssary logic from coverage workflow

Author: AlaaElattar

.github/workflows/coverage.yaml

@@ -20,23 +20,13 @@ jobs:
         uses: dart-lang/setup-dart@v1.6.0
         with:
           sdk: "stable"
-      - name: Setup Flutter
-        uses: subosito/flutter-action@v2
-        with:
-          flutter-version: "3.16.0"
 
       - name: Install Melos
         run: dart pub global activate melos
 
       - name: Install dependencies
         run: melos bootstrap
 
-      - name: Run unit tests
-        run: melos run unit_test
-
-      - name: Create coverage directory
-        run: mkdir -p coverage
-
       - name: Merge coverage
         run: |
           melos exec rm -rf coverage