Remove deprecated Fission Nats connector (#2403)

We are removing Fission deprecated Nats connector and
planning to adopt Keda going forward to have better
delegated functionality and more rich support.

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

test/test_utils.sh

@@ -203,7 +203,6 @@ set_environment() {
     # fission env
     export FISSION_URL=http://$(kubectl -n $ns get svc controller -o jsonpath='{...ip}')
     export FISSION_ROUTER=$(kubectl -n $ns get svc router -o jsonpath='{...ip}')
-    export FISSION_NATS_STREAMING_URL="http://defaultFissionAuthToken@$(kubectl -n $ns get svc nats-streaming -o jsonpath='{...ip}:{.spec.ports[0].port}')"
 
     # ingress controller env
     export INGRESS_CONTROLLER=$(kubectl -n ingress-nginx get svc ingress-nginx -o jsonpath='{...ip}')
@@ -480,7 +479,6 @@ dump_logs() {
     dump_fission_logs $ns $fns executor
     dump_fission_logs $ns $fns storagesvc
     dump_fission_logs $ns $fns mqtrigger
-    dump_fission_logs $ns $fns mqtrigger-nats-streaming
     dump_function_pod_logs $ns $fns
     dump_builder_pod_logs $bns
     dump_fission_crds
@@ -536,8 +534,6 @@ run_all_tests() {
         $ROOT/test/tests/test_specs/test_spec_archive/test_spec_archive.sh \
         $ROOT/test/tests/test_environments/test_tensorflow_serving_env.sh \
         $ROOT/test/tests/test_environments/test_go_env.sh \
-        $ROOT/test/tests/mqtrigger/nats/test_mqtrigger.sh \
-        $ROOT/test/tests/mqtrigger/nats/test_mqtrigger_error.sh \
         $ROOT/test/tests/test_huge_response/test_huge_response.sh \
         $ROOT/test/tests/test_kubectl/test_kubectl.sh
         $ROOT/test/tests/websocket/test_ws.sh