relax SVN archive

The command used was:
svn merge -r24736:r24735 .

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r24736 | bugman | 2014-07-25 11:20:21 +0200 (Fri, 25 Jul 2014) | 5 lines
Changed paths:
M /trunk/dep_check.py

Clean up of the dep_check module - all imported and unused modules are now deleted as well.

This cleans up the module namespace of the unused imports.
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