Fix critical issue in uninstall script on openshift

[kornys]

Uninstall script on ocp wrongly discovers also CR types which are not related to strimzi/console etc....

[INFO] Uninstalling StreamsHub developer quick-start stack                                                                                
[INFO] Dir: . | Timeout: 300s                                                                                                             
                                                                                                                                          
[INFO] Discovered CR types:                                                                                                               
[INFO]   Strimzi: baremetalhosts bmceventsubscriptions dataimages firmwareschemas hardwaredata hostfirmwarecomponents                     
hostfirmwaresettings hostupdatepolicies kafkabridges kafkaconnectors kafkaconnects kafkamirrormaker2s kafkanodepools kafkarebalances      
kafkas kafkatopics kafkausers preprovisioningimages provisionings strimzipodsets                                                          
[INFO]   Apicurio Registry: apicurioregistries3                                                                                           
[INFO]   StreamsHub Console: catalogsources clusterserviceversions consoleclidownloads consoleexternalloglinks consolelinks               
consolenotifications consoleplugins consolequickstarts consoles consolesamples consoleyamlsamples controlplanemachinesets installplans    
machinehealthchecks machines machinesets olmconfigs operatorconditions operatorgroups operators subscriptions 

[tomncooper]

Thanks for catching this @kornys, I hate awk, I was seriously considering rewriting these scripts in python!