Skipping to run TestUnsupportedInsertFormats test for compressed test.

Realized that if we run it with text/codec it will successfully insert a record
("hi", "there") in tinytable, which is undesirable. Skipping this test for
compressed text.

Change-Id: I8076f4fcac17d7f7530ac4993b0d4b3bd89d5fa0
Reviewed-on: http://gerrit.sjc.cloudera.com:8080/3668
Reviewed-by: Nong Li <nong@cloudera.com>
Tested-by: jenkins