ci: add a todo in build.yml, remove flutter doctor check

.github/workflows/build.yml

@@ -1,3 +1,5 @@
+# TODO: Update the workflow to build on Android, iOS, desktop (macOS and Windows) instead of just Linux and Web
+
 name: Build the example
 
 on:
@@ -38,9 +40,6 @@ jobs:
       - name: Install flutter Linux desktop depndecies
         run: sudo apt install -y clang cmake git ninja-build pkg-config libgtk-3-dev liblzma-dev libstdc++-12-dev
 
-      - name: Run flutter doctor
-        run: flutter doctor
-
       - name: Flutter build Linux
         run: flutter build linux --release --verbose --dart-define=CI=true
         working-directory: ./example