rm unused files

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
added more tests to find out behavior of rspec-mocks vs rspec-fire

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>
updated bosh_aws_cpi lifecycle spec to not use #example since it was deprecated in rspec3

Signed-off-by: dmitriy kalinin <dmitriy@pivotallabs.com>