Revert "Bluetooth: Fix eir name length"

This reverts commit 262a77d8 which is
commit 2ab3e8d6 upstream.

It breaks the Android kernel abi and can be brought back in the future
in an abi-safe way if it is really needed.

Bug: 161946584
Change-Id: Iaeeb3fa9c2f11e4e24d212a7c703cda24c01fa65
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>