TestSuppressions: removed unnecessary setting from checkSuppression()

Author: firewave

test/testsuppressions.cpp

@@ -184,7 +184,6 @@ class TestSuppressions : public TestFixture {
 
         CppCheck cppCheck(*this, true, nullptr);
         Settings& settings = cppCheck.settings();
-        settings.exitCode = 1;
         settings.jobs = 1;
         settings.inlineSuppressions = true;
         if (suppression == "unusedFunction")