Eliminate duplicate contradictory values from epoc/config.sh.

Eliminate duplicate contradictory values from epoc/config.sh.

The two values for quadtype have been present since epoc/config.sh was added
in 3a2f06e93704a418. quadtype is signed, (uquadtype is its unsigned
equivalent) hence remove the definition that uses unsigned long long.
The duplicate contradictory values for d_vendorarch were merged in by
b250498faaf6fbd0 (along with a lot of the non-contradictory duplication),
originating from commit eb0d51032951025d on the cfgperl branch.
The contradictory values for socksizetype arrived with the same commits.