Bug#1073212: RM: mozjs102 -- RoQA; build-depends on autoconf2.13; leaf package

[Bastian Germann]

Source: mozjs102

As soon as cjs 6.2.0 (the only reverse dep of mozjs102) or later is available 
in sid, mozjs102 should be removed.
It is one of the last reverse build dependencies of obsolete autoconf2.13.