・Remove abolished strings (MSG_NOZZLE1, MSG_NOZZLE2)
・Remove duplicated strings
・Arrange the strings in unified order
・Adjust spacing
・Remove some comments in Japanese files(follow-up the PR #3560)
The most part of these changes were salvaged from closed my PR#3550.
In all these cases we want the axis to be homed. If we could have lost
some steps is secondary.
Reenables homing seperate axis with DISABLE_X / DISABLE_Y true.
esenapaj