Remove backward compatibility with AssetEntries_AssetCategories

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: Master
• Fix Version/s: 7.1.10 DXP FP8, 7.1.10.2 SP2, 7.1.3 CE GA4, 7.1.X, Master
• Component/s: Asset Framework
• Labels:
  • liferay-dxp-71-sp2
  • liferay-fixpack-dxp-8-7110
• Branch Version/s:
  7.1.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/66658

In the issue https://issues.liferay.com/browse/LPS-85783 we added backward compatibility with old table to join AssetEntries and AssetCategories because no upgrade processes run to copy that information into the new table AssetEntryAssetCategoryRel

However, after the issue https://issues.liferay.com/browse/LPS-88901, old table data is copied to new table during the upgrade. For this reason, the code added in LPS-85783 seems legacy and it's better to remove (or deprecate if removal is not possible) at least in master.