Remove meaningless checks. Refs trac:3828

This commit was SVN r29375.

The following Trac tickets were found above:
  Ticket 3828 --> https://svn.open-mpi.org/trac/ompi/ticket/3828

ompi/mpi/c/type_get_extent_x.c

@@ -59,8 +59,8 @@ int MPI_Type_get_extent_x(MPI_Datatype type, MPI_Count *lb, MPI_Count *extent)
 
   rc = ompi_datatype_get_extent( type, &alb, &aextent );
   if (OMPI_SUCCESS == rc) {
-    *lb = ((uint64_t) alb > MPI_COUNT_MAX) ? MPI_UNDEFINED : alb;
-    *extent = ((uint64_t) aextent > MPI_COUNT_MAX) ? MPI_UNDEFINED : aextent;
+    *lb = (MPI_Count) alb;
+    *extent = (MPI_Count) aextent;
   }
 
   OMPI_ERRHANDLER_RETURN(rc, MPI_COMM_WORLD, rc, FUNC_NAME );

ompi/mpi/c/type_get_true_extent_x.c

@@ -63,8 +63,8 @@ int MPI_Type_get_true_extent_x(MPI_Datatype datatype,
 
    rc = ompi_datatype_get_true_extent( datatype, &atrue_lb, &atrue_extent );
    if (OMPI_SUCCESS == rc) {
-      *true_lb = ((uint64_t) atrue_lb > MPI_COUNT_MAX) ? MPI_UNDEFINED : atrue_lb;
-      *true_extent = ((uint64_t) atrue_extent > MPI_COUNT_MAX) ? MPI_UNDEFINED : atrue_extent;
+      *true_lb = (MPI_Count) atrue_lb;
+      *true_extent = (MPI_Count) atrue_extent;
    }
 
    OMPI_ERRHANDLER_RETURN(rc, MPI_COMM_WORLD, rc, FUNC_NAME );