Fixes for small memory leaks in tauRec
A few memory leaks were identified in the tauRec code. This should fix the following issues: https://its.cern.ch/jira/browse/ATLASRECTS-5059 https://its.cern.ch/jira/browse/ATLASRECTS-5060 https://its.cern.ch/jira/browse/ATLASRECTS-5061 https://its.cern.ch/jira/browse/ATLASRECTS-5155