Update build_android_library.sh

Author: kirklandsign

build/build_android_library.sh

@@ -42,8 +42,6 @@ build_android_native_library() {
 
   EXECUTORCH_BUILD_VULKAN="${EXECUTORCH_BUILD_VULKAN:-OFF}"
 
-  export EXECUTORCH_BUILD_EXTENSION_LLM=OFF
-
   cmake . -DCMAKE_INSTALL_PREFIX="${CMAKE_OUT}" \
     -DCMAKE_TOOLCHAIN_FILE="${ANDROID_NDK}/build/cmake/android.toolchain.cmake" \
     -DANDROID_ABI="${ANDROID_ABI}" \