Remove the JS-side SQLITE_WASM_DEALLOC sanity check which triggers the problem mentioned in [688c5c13d156] and [ae0196d86ee8], for reasons covered in the code comments, per discussion in [forum:e5b20e1feb|forum post e5b20e1feb].

FossilOrigin-Name: 65ff3200c6009a1649fc108d7ce36f5c014185ba46bbf98471ec86eaeb572656