residential landuse should be mapped as on large area like the way you deleted in this commit, this is because the whole area (including the roads) is residential, not just the part with the homes, the whole of it. land use is ultimately mostly decided by the county and the developers, we just map what they decided. OSM is a map of the world as it is, so we must endeavor to map the world as it is, this is why we shouldn't map landuse as individual small areas but as the whole area because what land is used for what is decided by the county in the zoning and use of the various areas and when mapping land use that is what we are mapping and the land that the roads are on is still part of the land that is being used as part of the neighborhood which is the larger area. 

if you have any comments feel free to contact me seperatly. 

happy mapping,
Udar. 