[FAB-9732] Remove dead cc example from e2e_cli dir

This example was originally used by the e2e_cli. However,
long ago, the e2e_cli switched to using the chaincode in
the standard examples/chaincode/go directory.

This CR removes the dead example code to ensure anyone
wishing to modify the chaincode used by the e2e_cli is
sure they're modifying the chaincode that's actually being
used.

Change-Id: I511f72b73ccb4d7a936373d2d7166127e2f0552f
Signed-off-by: Will Lahti <wtlahti@us.ibm.com>

Author: wlahti