Redundant exclusion of jruby-complete in pom of hbase-spark

In pom.xml of hbase-spark, jruby-complete is excluded from some of HBase child modules, there are 2 issues:

1. jruby-complete is excluded from the following child modules,

• hbase-client
• hbase-hadoop-compat
• hbase-hadoop2-compat

but those child modules does not introduce jruby-complete. jruby-complete is only introduced by hbase-shell, and by transitive dependency, it is also introduced by hbase-assembly, as hbase-assembly depends on hbase-shell.
But none of 3 modules listed above introduces jruby-complete.

2. The exclusion of jruby-complete is stated twice in each of the 3 child modules listed in 1.