Fix radian-customize-completion-mechanism bug
Fix radian-customize-completion-mechanism bug

Disabling packages based on the value of
radian-customize-completion-mechanism is already taken care of
automatically. Removing the when forms wrapping the helm and ivy
use-package forms causes no loss of functionality, but allows the user
to override the automatic disabling of helm or ivy packages (as
desired).

raxod502/radian,raxod502/radian