core: Remove SearchQueryFormatter.main(String[])

SearchQueryFormatter seems to have an old main(String[]) function used
for a visual sanity check.

This method has not real use, and no place in production code.

Change-Id: I4e36f0fe4dd51d96725090a5ece6f736f298a4e7
Signed-off-by: Allon Mureinik <amureini@redhat.com>