adjust the argument of rmvm according to the requirement.

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@4869 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

perl-xCAT/xCAT/PPCvm.pm

@@ -616,6 +616,7 @@ sub remove {
     my $request = shift;
     my $hash    = shift;
     my $exp     = shift;
+    my $opt     = $request->{opt};
     my @lpars   = ();
     my @values  = ();