Remove timestamp based filelist file for tracking Python dependencies

Each Python module will generate a zip file containing source & data
files. The Python binary will collect all its dependencies and use
merge_zips to merge each zip file to create a final .par file.

Test: m -j checkbuild && real examples:
Bug: b/70568913

Change-Id: I9ff232d461d33e1c06026e7dcb5b124bf02c3ce5