For actual mobile devices, yes there is no need. FP64 only has a use in scientific research, maybe finance and a few other fields. Even there you would do a lot

For actual mobile devices, yes there is no need. FP64 only has a use in scientific research, maybe finance and a few other fields. Even there you would do a lot of mixed precision stuff. The reason that the support was there was probably that they wanted to design a single chip and either remove/disable cores for truly mobile or general purpose boards while having the logic available for customers that would actually want it.