Added removing commad from Module

git-svn-id: https://www.prismmodelchecker.org/svn/prism/prism/trunk@7269 bbc10eb1-c90d-0410-af57-cb519fbb1720

prism/src/parser/ast/Module.java

@@ -87,6 +87,11 @@ public class Module extends ASTElement
 		c.setParent(this);
 	}
 	
+	public void removeCommand(Command c)
+	{
+		commands.remove(c);
+	}
+	
 	public void setCommand(int i, Command c)
 	{
 		commands.set(i, c);