Remove outdated documentation on largest allowed number of dofs.

In the module on distributed parallel computing the largest allowed
number of dofs is stated to be the largest attainable value of int.
This no longer true, remove the statement.

diff --git a/doc/doxygen/headers/distributed.h b/doc/doxygen/headers/distributed.h
index 1ef71746efb5e79b7e2d11a44adc4c2cf00db5b5..f033d320d6d59ef05c3d76bb31d8c787a8e158ac 100644 (file)
--- a/doc/doxygen/headers/distributed.h
+++ b/doc/doxygen/headers/distributed.h
@@ -68,10 +68,7 @@
  * a thorough description of many of the terms used here, can be found in the
  * @ref distributed_paper "Distributed Computing paper". In particular, the
  * paper shows that the methods discussed in this module scale to thousands of
- * processors and well over a billion degrees of freedom (they may scale to
- * even bigger problems but at the time of writing this, we do not have
- * solvers that are capable of more than $2^{31}$ degrees of freedom due to
- * the use of <code>signed int</code> as index). The paper also gives a
+ * processors and well over a billion degrees of freedom. The paper also gives a
  * concise definition of many of the terms that are used here and in other
  * places of the library related to distributed computing.  The step-40
  * tutorial program shows an application of the classes and methods of this