deleting VMs using vboxmanage rather than vagrant destroy

scripts/build/deleteallvms.sh

 #!/bin/bash
 
-vboxmanage list vms | awk ' {print $1} ' | awk -F',' '{gsub(/"/, "", $1); print $1}' > runningvms
+vboxmanage list vms | awk '{print $1} ' | awk -F',' '{gsub(/"/, "", $1); print $1}' > runningvms
 
 while read vm_id; do
   echo $vm_id
@@ -8,4 +8,3 @@ while read vm_id; do
   vboxmanage unregistervm $vm_id --delete
 done <runningvms
 
-rm runningvms
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