Remove redundant Maven extensions

[ZHANGSHUNLIN]

Remove redundant Maven extensions

[popduke]

why "maven.bos.plugin.version" is still kept?

[coveralls]

Pull Request Test Coverage Report for Build 15416268890

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 32 unchanged lines in 11 files lost coverage.
• Overall coverage increased (+0.01%) to 62.867%

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Files with Coverage Reduction	New Missed Lines	%
org/apache/bifromq/basecrdt/store/AntiEntropy.java	1	83.16%
org/apache/bifromq/basekv/raft/RaftNodeStateLeader.java	1	85.23%
org/apache/bifromq/basekv/store/wal/KVRangeWALSubscription.java	1	93.75%
org/apache/bifromq/basecluster/memberlist/AutoDropper.java	2	81.74%
org/apache/bifromq/basekv/store/range/KVRange.java	2	93.75%
org/apache/bifromq/basekv/store/range/KVRangeWriter.java	2	75.0%
org/apache/bifromq/basekv/store/stats/StatsCollector.java	2	78.95%
org/apache/bifromq/mqtt/handler/MQTTTransientSessionHandler.java	2	82.83%
org/apache/bifromq/dist/trie/TopicFilterIterator.java	5	77.48%
org/apache/bifromq/basekv/store/range/KVRangeFSM.java	6	73.83%

Totals
Change from base Build 15406828609:	0.01%
Covered Lines:	23368
Relevant Lines:	35899

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💛 - Coveralls