fix(toast): remove unused options
fix(toast): remove unused options

references #5582

manucorporat/ionic,cambronjay/ionic,cambronjay/ionic,driftyco/ionic,driftyco/ionic,TillaTheHun0/ionic,janglednerves/ionic,alan-agius4/ionic,AbraaoAlves/ionic,jhlee8804/ionic,dennybiasiolli/ionic,cambronjay/ionic,AbraaoAlves/ionic,AbraaoAlves/ionic,AbraaoAlves/ionic,cambronjay/ionic,AbraaoAlves/ionic,dennybiasiolli/ionic,alan-agius4/ionic,alan-agius4/ionic,joshesp/ionic,driftyco/ionic,jarrodkoch/ionic,alan-agius4/ionic,TillaTheHun0/ionic,jhlee8804/ionic,jarrodkoch/ionic,manucorporat/ionic,dennybiasiolli/ionic,alan-agius4/ionic,jhlee8804/ionic,dennybiasiolli/ionic,jarrodkoch/ionic,TillaTheHun0/ionic,janglednerves/ionic,manucorporat/ionic,joshesp/ionic,joshesp/ionic,cambronjay/ionic,joshesp/ionic,brianespinosa/ionic2-sass,manucorporat/ionic,dennybiasiolli/ionic,TillaTheHun0/ionic,alan-agius4/ionic,jarrodkoch/ionic,janglednerves/ionic,janglednerves/ionic,driftyco/ionic,janglednerves/ionic,driftyco/ionic,jhlee8804/ionic,jarrodkoch/ionic,jhlee8804/ionic,manucorporat/ionic