fix cpp check

Author: lrvideckis

tests/.config/.cppcheck_suppression_list

@@ -44,7 +44,6 @@ knownConditionTrueFalse:../library/strings/suffix_array/suffix_array_short.hpp:2
 knownConditionTrueFalse:../library/data_structures/dsu/kruskal_tree.hpp:15
 constVariable:../kactl/content/numerical/NumberTheoreticTransform.h:30
 constVariable:../kactl/content/graph/CompressTree.h:20
-functionStatic:../library/monotonic_stack/monotonic_stack.hpp:10
 constVariableReference:../kactl/content/graph/CompressTree.h:20
 constVariableReference:../library/flow/min_cost_max_flow.hpp:43
 constVariableReference:library_checker_aizu_tests/graphs/connected_components_of_complement_graph.test.cpp:21