The default logit minor locator should not display tick labels #13698

Bug report

Code for reproduction

from pylab import *
rcdefaults()
fig, axs = plt.subplots(2)
axs[0].plot([1, 100]); axs[0].set(yscale="log")
axs[1].plot([.01, .99]); axs[1].set(yscale="logit")
plt.show()

Actual outcome

Expected outcome

The logit minor tick labels are "a bit" crowded... (examples in the docs that showcase logit all explicitly remove the minor labels using e.g. NullFormatter)

LogitFormatter should likely use a mechanism similar to LogFormatter's sublabels to avoid displaying the minor ticks labels in this case (haven't thought about the details, though).

Matplotlib version

• Operating system: linux
• Matplotlib version: 3/master
• Matplotlib backend (print(matplotlib.get_backend())): any
• Python version: 3.7
• Jupyter version (if applicable): no
• Other libraries: no