Revert "[PT-BR] translate sources.md into Portuguese (Brazil) (#8776)" (#8818)
Revert "[PT-BR] translate sources.md into Portuguese (Brazil) (#8776)" (#8818)

This reverts commit ff2fe4e594634add32a435dbafbd13d9d93f7acd.
myakura/WebFundamentals,myakura/WebFundamentals,google/WebFundamentals,google/WebFundamentals,myakura/WebFundamentals,myakura/WebFundamentals,google/WebFundamentals,google/WebFundamentals