Various fixes (#1705)
Various fixes (#1705)

* Remove sphinx dependency and docs package.  We probably would provide tthat in the MINGW package.

* add package dpenendcies for subpackages.

mashir43/MSYS2-packages,atom2013/MSYS2-packages,waterlan/MSYS2-packages,waterlan/MSYS2-packages,Alexpux/MSYS2-packages,JPeterMugaas/MSYS2-packages,mati865/MSYS2-packages,mashir43/MSYS2-packages,juergenpf/MSYS2-packages,juergenpf/MSYS2-packages,mati865/MSYS2-packages,atom2013/MSYS2-packages,mati865/MSYS2-packages,juergenpf/MSYS2-packages,JPeterMugaas/MSYS2-packages,atom2013/MSYS2-packages,mati865/MSYS2-packages,juergenpf/MSYS2-packages,waterlan/MSYS2-packages,JPeterMugaas/MSYS2-packages,Alexpux/MSYS2-packages,waterlan/MSYS2-packages,mashir43/MSYS2-packages,juergenpf/MSYS2-packages,Alexpux/MSYS2-packages,JPeterMugaas/MSYS2-packages,atom2013/MSYS2-packages,mashir43/MSYS2-packages,Alexpux/MSYS2-packages