Separate app-manager and app-framework from WAMR (#3129)

As planned, the app-manager and app-framework are to be migrated to
https://github.com/bytecodealliance/wamr-app-framework.

ps.
https://github.com/bytecodealliance/wasm-micro-runtime/issues/2329
https://github.com/bytecodealliance/wasm-micro-runtime/wiki/TSC-meeting-notes

.github/workflows/compilation_on_android_ubuntu.yml

@@ -20,7 +20,6 @@ on:
       - "!samples/workload/**"
       - "tests/wamr-test-suites/**"
       - "wamr-compiler/**"
-      - "wamr-sdk/**"
       - "test-tools/wamr-ide/**"
   # will be triggered on push events
   push:
@@ -38,7 +37,6 @@ on:
       - "!samples/workload/**"
       - "tests/wamr-test-suites/**"
       - "wamr-compiler/**"
-      - "wamr-sdk/**"
       - "test-tools/wamr-ide/**"
   # allow to be triggered manually
   workflow_dispatch:
@@ -430,13 +428,6 @@ jobs:
           cmake --build . --config Debug --parallel 4
           ./hello
 
-      - name: Build Sample [simple]
-        run: |
-          ./build.sh -p host-interp
-          python3 ./sample_test_run.py $(pwd)/out
-          exit $?
-        working-directory: ./samples/simple
-
       - name: Build Sample [wasi-threads]
         run: |
           cd samples/wasi-threads