STEllAR-GROUP/hpx — pull request #1110 by elfring (2014-04-07 07:09:31+00:00)
Title: Remove unnecessary null pointer checks.

Explicit null pointer checks are performed at a few source code places before pointers are passed to the C++ delete operator. This is unnecessary because [the delete operator will care for such parameter validation already](http://www.parashift.com/c++-faq/delete-handles-null.html "Do I need to check for NULL before delete p? ").