start-testsuite.sh: do not override LD_LIBRARY_PATH

The Eclipse titan.core may not only be installed to hard-coded
'/usr/lib/titan' patch, but to any other location too. In the
later case, one would have to make sure that the custom path
is in $LD_LIBRARY_PATH. So we shall not override it.

Change-Id: I1ec28e8c3081d5de1bea90a7451791ac8cbbd27c
1 file changed