remove doc/ directory seeing how it does not actually contain any useful dox
remove doc/ directory seeing how it does not actually contain any useful dox

blueoceanideas/metabase,jonasdiel/metabase-ptBR,dashkb/metabase,Endika/metabase,lukaswelte/metabase,zoowii/metabase,lukaswelte/metabase,blueoceanideas/metabase,zoowii/metabase,lukaswelte/metabase,lukaswelte/metabase,dashkb/metabase,Endika/metabase,Endika/metabase,dashkb/metabase,blueoceanideas/metabase,jonasdiel/metabase-ptBR,zoowii/metabase,blueoceanideas/metabase,jonasdiel/metabase-ptBR,jonasdiel/metabase-ptBR,zoowii/metabase,dashkb/metabase,Endika/metabase,zoowii/metabase,dashkb/metabase,Endika/metabase,blueoceanideas/metabase,lukaswelte/metabase,jonasdiel/metabase-ptBR