Leaf names visible despite show_leaf_name=False

[Michael Gruenstaeudl]

Hello!

The following code is supposed to visualize a minimalistic tree next to a sequence alignment, with the tree leaves displayed as aligned. Especially note the setting ts.show_leaf_name=False

```

from ete3 import PhyloTree, TreeStyle, TextFace
tre = "(A:3,(B:1,C:6));"
aln = """
>A
ATGC
>B
GCAT
>C
AGCT
"""
t = PhyloTree(tre, alignment=aln, alg_format="fasta")
for l in t.iter_leaves():
    l.add_face(TextFace(l.name), 0, position='aligned')
ts = TreeStyle()
ts.show_leaf_name=False
ts.draw_guiding_lines=True
t.show(tree_style=ts)

```

However, the above code displayed both the original leaf names as well as the new (i.e., aligned) ones.

I wish to display only the new (i.e., aligned) leaf names. What part of the above code is incorrect?

Thank you, Michael G.

[Michael Gruenstaeudl]

A simple, albeit unconventional solution would be to replace the original leaf name with an empty string:

```

for l in t.iter_leaves():
    l.add_face(TextFace(l.name), 0, position='aligned')

    l.name = " "

```