[QA] Cleanup API acceptance test code

[phil-davis]

The code and feature files for API acceptance tests for ocis and reva are now stored in the owncloud/ocis repo.
Ref: owncloud/ocis#5306 owncloud/ocis#5280 owncloud/ocis#5094

The core API acceptance test code is now only used by owncloud/core and the oC10 apps ( owncloud/activity ... repos).

Cleanup the test code and feature files to remove:

• scenarios and scenario examples that are only for ocis/reva
  • scenario examples @PrajwolAmatya [tests-only] [full-ci] remove scenario examples that are only for ocis/reva #40581
  • scenarios @roshanlc [tests-only][full-ci] Removed scenarios that are only for ocis/reva #40585
  • feature files
• scenario tags toImplementOnOcis, notToImplementOnOcis, skipOnOcis @roshanlc
  - [tests-only][full-ci] Remove scenario tag skipOnOcis from feature files #40597
  - [tests-only][full-ci] Remove scenario tag @toImplementOnOcis from feature files #40598
  - [tests-only][full-ci] Remove scenario tag @notToImplementOnOcis from feature files #40599
  - [tests-only][full-ci] Remove ocis bug demonstration scenarios and leftover ocis skip tags #40630
• scenario tags related to ocis/reva (e.g. issue-ocis-*) @roshanlc
  • [tests-only][full-ci] Remove ocis/reva related scenario tags #40621
  • [tests-only][full-ci] Remove remaining ocis/reva scenario tags #40622
• code that only runs when testing on ocis/reva @roshanlc
• functions like isTestingOnReva() isTestingOnOcis() etc @roshanlc
  • [tests-only][full-ci] Remove isTestingOnReva() and isTestingOnOcis() and their references #40625
  • [tests-only][full-ci] Remove isTestingOnOcisOrReva() method and its references #40628
  • [tests-only][full-ci] Remove OcisHelper class and its references #40629
• code in scripts that is only for ocis/reva (run.sh and ... probably has "if" statements that do special things for ocis/reva) @roshanlc [tests-only][full-ci] Remove ocis and reva conditional checks from run.sh #40631
• any other crud that is noticed
• code related to parallel deployment

[grgprarup]

@PrajwolAmatya is working on removal of examples and scenarios that run only for ocis/reva

[grgprarup]

@roshanlc is working on removal of examples and scenarios that run only for ocis/reva