Remove legacy reset.sh script (#4157)

# Summary

`reset.go` has been used for a while instead of `reset.sh` (this is the
PR where we replaced it
10gen/ops-manager-kubernetes#3841)

We can now get rid of the legacy script

Author: Julien-Ben

Makefile

@@ -99,9 +99,9 @@ e2e-telepresence: build-and-push-test-image
 recreate-e2e-kops:
 	@ scripts/dev/recreate_e2e_kops.sh $(imsure) $(cluster)
 
-# clean all kubernetes cluster resources and OM state. "light=true" to clean only Mongodb resources
+# clean all kubernetes cluster resources and OM state
 reset:
-	@ scripts/dev/reset.sh $(light)
+	go run scripts/dev/reset.go
 
 status:
 	@ scripts/dev/status

scripts/dev/reset.go

@@ -402,8 +402,6 @@ func main() {
 				fmt.Fprintf(os.Stderr, "  %v\n", err)
 			}
 		}
-		// TODO: once the script has been used for a while without problem, remove reset.sh and below line
-		fmt.Fprintf(os.Stderr, "reset.go is a new script, you can try using scripts/dev/reset.sh instead\n")
 		os.Exit(1)
 	}