BUG: Fix plots showing multiple sets of  axis labels if index is a timeseries.
Fixes #3964

can you post the updated plots that result?
 Here it is:

![figure_1](https://cloud.githubusercontent.com/assets/5957850/4969615/1e944112-6865-11e4-9808-dc0e1e5f3669.png)
 cc @michaelaye you raised this issue (a while ago!) 

can you have a look - see if this is the expectation

@TomAugspurger 
 This is another issue, but it seems as if the font size only affects the x axis.. (Confirmed it also happens on master).
 @dstephens99 ok, pls create a separate issue for that (as fix will be independent).
 Here's the code that generated the plot.  Made it a bit easier to see with a bigger font and sharing the yaxis as well.

``` python
import pandas as pd
import numpy as np
import matplotlib.pyplot as plt

fig, axes = plt.subplots(3, 3, sharex=True, sharey=True)
plt.subplots_adjust(left=0.05, right=0.95, hspace=0.1, wspace=0.1)
df = pd.DataFrame(np.random.randn(10, 9), index=pd.date_range(start='2014-07-01', freq='M', periods=10))
for i, ax in enumerate(axes.ravel()):
    df[i].plot(ax=ax, fontsize=8)
```

![figure_2](https://cloud.githubusercontent.com/assets/5957850/4969636/060daf42-6866-11e4-85d0-45ed1f898913.png)
 Checked out this branch. Looks good to me, thanks!
 I'll be able to check this out in a week or so. 

> On Nov 10, 2014, at 13:59, K.-Michael Aye notifications@github.com wrote:
> 
> Checked out this branch. Looks good to me, thanks!
> 
> —
> Reply to this email directly or view it on GitHub.
 @dstephens99 can you rebase

@TomAugspurger ?
 Just the one note about x vs y. Then lets merge it. May need one more rebase, but I promise I won't let it sit around waiting to be merged this time!
 @TomAugspurger ready to go?

can rebase on the merge if needed
 Yeah, I think so. I'll do one more once-over and then rebase on merge.
 Merged via https://github.com/pydata/pandas/commit/7d13fdd8a1ad67113f4255e5b715f48faae827d0
 Thanks @dstephens99!
