Pare down assimp thirdparty library

thirdparty/assimp/scripts/android_crosscompile/make_android.bat

@@ -1,28 +0,0 @@
-@echo off
-
-set ASSIMP_PATH=D:\projects\asset-importer-lib\assimp
-set CMAKE_PATH="C:\Program Files\CMake\bin\cmake.exe"
-set ANDROID_NDK_PATH=C:\Users\kimkulling\AppData\Local\Android\Sdk\ndk-bundle
-set ANDROID_CMAKE_PATH=contrib\android-cmake
-
-pushd %ASSIMP_PATH%
-
-rmdir /s /q build
-mkdir build
-cd build
-
-%CMAKE_PATH% .. ^
-  -G"MinGW Makefiles" ^
-  -DCMAKE_BUILD_TYPE=Release ^
-  -DCMAKE_TOOLCHAIN_FILE=%ANDROID_CMAKE_PATH%\android.toolchain.cmake ^
-  -DCMAKE_MAKE_PROGRAM=%ANDROID_NDK_PATH%\prebuilt\windows-x86_64\bin\make.exe ^
-  -DANDROID_NDK=%ANDROID_NDK_PATH% ^
-  -DANDROID_NATIVE_API_LEVEL=android-9 ^
-  -DASSIMP_ANDROID_JNIIOSYSTEM=ON ^
-  -DANDROID_ABI=arm64-v8a ^
-  -DASSIMP_BUILD_ZLIB=ON ^
-  -DASSIMP_BUILD_TESTS=OFF
-
-%CMAKE_PATH% --build .
-
-popd