Revert "HBASE-9448. [0.94] Shell needs to fall back after HBASE-9182 if talking to older servers"

This reverts commit 2a11f9d85214014692c12e2d6d6c6ebb0b13f8ed.
Revert "HBASE-9314. Dropping a table always prints a TableInfoMissingException in the master log"

This reverts commit 35db4af34b0aadda2c7901c38e5a2a487e8542da.