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

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

Change-Id: I1c2fc5f1ab85b23ee640c517aa73311a9b3d90ae
Signed-off-by: Automerger Merge Worker <[email protected]>