legacy/src/main/java/thredds/catalog/ThreddsMetadata.java
public void removeDocumentation(String type) {
    Iterator iter = docs.iterator();
    while (iter.hasNext()) {
      InvDocumentation doc = (InvDocumentation) iter.next();
      String dtype = doc.getType();
      if ((dtype != null) && dtype.equalsIgnoreCase(type))
        iter.remove();
    }
  }
public void removeDocumentation(String type) {
    Iterator iter = docs.iterator();
    while (iter.hasNext()) {
      InvDocumentation doc = (InvDocumentation) iter.next();
      String dtype = doc.getType();
      if ((dtype != null) && dtype.equalsIgnoreCase(type))
        iter.remove();
    }
  }
remove all instances of specified type of documentation
@param type type of documentation