vndk-def: Remove "follow" from default action

This commit removes `follow` option from the default actions to handle
ineligible vndk and vndk-sp usages.  We prefer to stop at ineligible
libs instead of pulling all ineligible dependencies.

Bug: 37867089
Test: libandroid.so is not tagged as vndk by default with sailfish images.
Change-Id: Iafeb27bb2c658fc07916517033fbedcc9cdd84eb