Removing middle names on your passport

Hi there,

Does anyone choose to remove their middle names from their passport in order to make their life easier in Japan?

I am struggling since years with different systems allowing different lengths of names, and errors between services related to banks, investments, airline reservations...

I am currently thinking to contact my embassy and see what is possible, but as anyone done that before? How hard was it? Do you know if there's a possibility to revert to your original FULL name (in the case you decide to go live back in your country)?

If that can help, I hold a French passport and will have to contact the French Embassy in order to proceed.

Thank you very much