winverbs.lib: remove from build

Removal of the listen.cpp and listen.h source files results in the winverbs library build breaking.  The removal will occur, but it's only part of a patch to winverbs to handle listening.  So, we either need to apply the rest of the patch or back out the changes to fix the build.  Since the rest of the patch will be applied within the next couple of days, remove the library from the build until then.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
git-svn-id: svn://openib.tc.cornell.edu/gen1/trunk@1861 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86