* stable-5.10: Remove unused imports Silence API warnings Remove erraneously merged source features Prepare 5.3.9-SNAPSHOT builds JGit v5.3.8.202011260953-r Prepare 5.1.15-SNAPSHOT builds JGit v5.1.14.202011251942-r GC#deleteOrphans: log warning for deleted orphaned files GC#deleteOrphans: handle failure to list files in pack directory Ensure that GC#deleteOrphans respects pack lock PacketLineIn: ensure that END != DELIM Update API warning filters Remove unused imports Change-Id: I25f50c3807a4e6b22a264320ea7ed3758e2a75ec Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>