fix android ci [ci build]

tools/travis-scripts/run-script.sh

@@ -87,11 +87,6 @@ function build_android()
     # build cpp-tests
     pushd $COCOS2DX_ROOT/tests/cpp-tests/proj.android
     
-    # generate local.properties to use system installed cmake since we require cmake-3.14+
-    CMAKE_PATH=`which cmake`
-    CMAKE_DIR=`dirname ${CMAKE_PATH}`
-    echo "cmake.dir=${CMAKE_DIR}">local.properties
-    cat local.properties
     do_retry ./gradlew assembleRelease -PPROP_BUILD_TYPE=cmake -PPROP_APP_ABI=arm64-v8a --parallel --info
     popd
 }