DOC/BUG: Pandas Adds a Dashed Line in Bar Plot (unnecessarily?)

[joehand]

When using df.plot(kind='bar') pandas adds a dotted line to the x-axis (kind='barh', line is added to y-axis). Why is the dotted line added (line in the code)?

This line is undocumented and there is no way to remove it without a hack. It'd be nice to have it documented (if it is necessary) or removed.

[TomAugspurger]

Probably added in c63d623. I wouldn't mind removing the line entirely.

[sinhrks]

Related to #7128. I don't' oppose to omit it entirely, or should have switching option?

[TomAugspurger]

I don't really think a keyword argument would even be good. A more complex API and more code to maintain, for something that's really easy to do, but really hard to undo.