[KYLIN-3415] Remove "external" module

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: v2.4.0, v2.3.2
• Component/s: Tools, Build and Test
• Assignee: Shao Feng Shi
• Reporter: Shao Feng Shi
• Created: 19/Jun/18 09:26
• Updated: 23/Jun/18 14:56
• Resolved: 20/Jun/18 08:18

Description

Kylin's "external" module was created to build shaded jar so that it can be referenced in "core-common" module. While this function is not in real use now, and it blocks the apache release process. So we can safely remove it.