refactor(cross): deleted demo library cross compilation directory

cross/wasm32.ini

@@ -1,21 +0,0 @@
-[binaries]
-c = 'emcc'
-cpp = 'em++'
-ar = 'emar'
-strip = 'emstrip'
-exe_wrapper = 'node'
-
-[built-in options]
-c_args = ['-O1']
-cpp_args = ['-O1', '-fwasm-exceptions']
-c_link_args = ['-O1', '-sALLOW_MEMORY_GROWTH=1']
-cpp_link_args = ['-O1', '-fwasm-exceptions', '-sALLOW_MEMORY_GROWTH=1']
-
-[host_machine]
-system = 'emscripten'
-cpu_family = 'wasm32'
-cpu = 'wasm32'
-endian = 'little'
-
-[properties]
-needs_exe_wrapper = true