Fixed Issues in Phoenix

Review the list of Phoenix issues that are resolved in Cloudera Runtime 7.2.10.

CDPD-21403: Phoenix Omid - Remove netty 3 dependency.

Removed netty 3.x dependency, which is vulnerable to a bunch of CVEs. This issue is resolved.

CDPD-21403: Phoenix-Spark connector can coexist with the HBase-Spark connector.

This issue is resolved.