Updated Working for Android (markdown)

Working-for-Android.md

@@ -59,7 +59,6 @@ You can build raylib using either **CMake** or **Make**. Follow the steps below
      ```
    - Build raylib as a static library:
      ```
-     rm -rf Build
      cmake -B Build \
            -G <build_system> \
            -DCMAKE_BUILD_TYPE=Release \
@@ -86,7 +85,6 @@ You can build raylib using either **CMake** or **Make**. Follow the steps below
      ```
    - Build the library:
      ```
-     make clean
      make PLATFORM=PLATFORM_ANDROID \
           ANDROID_NDK=<path_to_ndk> \
           ANDROID_API_VERSION=<minimum-api-level> \