build_loop_nesting_graph: remove unused logging parameter

There is no actual logging done.

Author: tautschnig

src/goto-instrument/contracts/dynamic-frames/dfcc_loop_nesting_graph.cpp

@@ -13,7 +13,6 @@ Date: March 2023
 #include "dfcc_loop_nesting_graph.h"
 
 #include <util/invariant.h>
-#include <util/message.h>
 
 dfcc_loop_nesting_graph_nodet::dfcc_loop_nesting_graph_nodet(
   const goto_programt::targett &head,
@@ -24,8 +23,7 @@ dfcc_loop_nesting_graph_nodet::dfcc_loop_nesting_graph_nodet(
 }
 
 /// \pre Loop normal form properties must hold.
-dfcc_loop_nesting_grapht
-build_loop_nesting_graph(goto_programt &goto_program, messaget &log)
+dfcc_loop_nesting_grapht build_loop_nesting_graph(goto_programt &goto_program)
 {
   natural_loops_mutablet natural_loops(goto_program);
   dfcc_loop_nesting_grapht loop_nesting_graph;

src/goto-instrument/contracts/dynamic-frames/dfcc_loop_nesting_graph.h

@@ -47,6 +47,6 @@ typedef grapht<dfcc_loop_nesting_graph_nodet> dfcc_loop_nesting_grapht;
 /// loops in the given \p goto_program.
 /// A loop is considered nested in an outer loop if its head and its latch are
 /// both found in the instructions of the outer loop.
-dfcc_loop_nesting_grapht
-build_loop_nesting_graph(goto_programt &goto_program, messaget &log);
+dfcc_loop_nesting_grapht build_loop_nesting_graph(goto_programt &goto_program);
+
 #endif