Removes installation of duplicate Maven plugin #97

Job	Run time
collect-github-api-artifacts	3s
collect-github-api-artifacts	3s
create-splash-image	4s
create-splash-image	4s
build-linux-user-ci	15m 36s
build-linux-user-ci	15m 36s
build-windows-user	36s
build-windows-user	23m 17s
build-macos-user	19m 26s
build-macos-user	19m 26s
build-linux-user	8m 48s
build-linux-user	8m 48s
create-release	0s
create-release	0s
	1h 51m 47s

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