writerfilter: remove unused effort.xsl

Change-Id: I8e05b2d8e62acaab651f8db4098a8877713e81e0
writerfilter: remove unused rngtocxx

Change-Id: I780aff48f55bdc4f903404472f22f3fb4bb6968c
coverity#1158082 Unchecked dynamic_cast

Change-Id: Ia70d73d64af020c546a0218b996334959ca6b624
coverity#1158083 Unchecked dynamic_cast

Change-Id: I8213e0c8e6228320c6efcba5e42e58e87e0379b9