Optimize performance in TClonesArray::Streamer when reading:  - no need to call Delete. Done inside TStreamerInfo::ReadBufferClones  - no need to call fClass->New with placement when CanBypassStreamer is true.
Optimize performance in TClonesArray::Streamer when reading:
 - no need to call Delete. Done inside TStreamerInfo::ReadBufferClones
 - no need to call fClass->New with placement when CanBypassStreamer is true.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@5082 27541ba8-7e3a-0410-8455-c3a389f83636

dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,dawehner/root,bbannier/ROOT,dawehner/root,bbannier/ROOT