code: boolean removeCircleFromField(String circle, ProfileField<?> field, SPFPersona p) {
  		if (field.getIdentifier().equals(ProfileField.IDENTIFIER.getIdentifier()) || field.getIdentifier().equals(ProfileField.DISPLAY_NAME.getIdentifier())) {
  			return false;
  		}
  		SQLiteDatabase db = getWritableDatabase();
  		return removeCircleFromField(circle, field, p, db);
  	}
docs: Remove a circle from a specified profile field.
  
  @param field
  the {@link ProfileField} to modify
  @param circle
  - the circle to add
  @param p
  - the {@link SPFPersona} to modify
  @return true if the operation was successful