LinearSolver::Options::num_eliminate_blocks is dead.

Replaced with LinearSolver::Options::elimination_groups.

Change-Id: I7c07542ec19279a35ddf6da498d417a79395c77f
diff --git a/internal/ceres/schur_complement_solver_test.cc b/internal/ceres/schur_complement_solver_test.cc
index 6c31c35..71c6cfd 100644
--- a/internal/ceres/schur_complement_solver_test.cc
+++ b/internal/ceres/schur_complement_solver_test.cc
@@ -98,7 +98,9 @@
       ceres::SparseLinearAlgebraLibraryType sparse_linear_algebra_library) {
     SetUpFromProblemId(problem_id);
     LinearSolver::Options options;
-    options.num_eliminate_blocks = num_eliminate_blocks;
+    options.elimination_groups.push_back(num_eliminate_blocks);
+    options.elimination_groups.push_back(
+        A->block_structure()->cols.size() - num_eliminate_blocks);
     options.type = linear_solver_type;
     options.sparse_linear_algebra_library = sparse_linear_algebra_library;