Removed dash so PV name matches correctly

The create-pv.sh uses name format crunchy-pv$i.  This fixes the delete-pv.sh to match that name format.

Author: vladimirvivien

examples/operator/delete-pv.sh

@@ -17,6 +17,6 @@ DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 
 for i in {1..15}
 do
-   	echo "deleting PV crunchy-pv-$i"
-	kubectl delete pv crunchy-pv-$i
+   	echo "deleting PV crunchy-pv$i"
+	kubectl delete pv crunchy-pv$i
 done