Comment # 1 on bug 1165962 from Martin Sirringhaus

In principle, I sympathize with that request. 
The only problem I see is the actual migration. 

There are, as far as I see, three options:

1.) Remove *-translations-common and/or *-translations-other without any
automatic replacement
2.) Remove them, but install *all langpacks* as a replacement (even if only
*-common was installed)
3.) Remove them, but install the corresponding langpacks for each package (e.g.
all langpacks that are currently inside *-common, if *-common is installed)

Option 1 is a breaking change, which I am (and more importantly, many
customers) against.
Option 2 makes matters worse for almost every user.
Option 3 would have a neutral outcome, but the corresponding code to achieve
this would be very ugly and hard/annoying to maintain.