Remove old GenericList implementation files

[SachinMali]

#2919 Remove old GenericList implementation files

... /utilities/genericlist/list.json.jsp This file has NOT been deleted as classic UI dialogs depend on JSON data via ..//_jcr_content.list.json

Verified Generic Lists Tests as

1. Can Open, Edit existing lists
2. Can create, and edit New existing lists
3. And list.json works for classic custom dialogs

[codecov]

Codecov Report

Merging #2926 (4e02911) into acs-aem-commons-6.0.0 (7c4c2db) will not change coverage.
The diff coverage is n/a.

@@                   Coverage Diff                    @@
##             acs-aem-commons-6.0.0    #2926   +/-   ##
========================================================
  Coverage                    54.52%   54.52%           
  Complexity                    5369     5369           
========================================================
  Files                          723      723           
  Lines                        29181    29181           
  Branches                      3732     3732           
========================================================
  Hits                         15912    15912           
  Misses                       11785    11785           
  Partials                      1484     1484           

Help us with your feedback. Take ten seconds to tell us how you rate us.