Remove visibility for rootcanal am: a704b6efbf am: d072b4b016 am: b8e87d598d am: cf4c8b17bc am: 6f9e8b4241

Original change: https://android-review.googlesource.com/c/platform/external/python/pybind11/+/2511955

Change-Id: I3dd44cc28154c2db0c3cc702c7c651605644c007
Signed-off-by: Automerger Merge Worker <[email protected]>