cwe-mapper: use defaulted destructors

Author: lzaoral

src/lib/cwe-mapper.cc

@@ -48,10 +48,6 @@ CweMap::CweMap():
 {
 }
 
-CweMap::~CweMap()
-{
-}
-
 bool CweMap::empty() const
 {
     return d->mapByChk.empty();
@@ -159,10 +155,6 @@ CweMapDecorator::CweMapDecorator(AbstractWriter *writer, bool silent):
     d->cweMap.setSilent(silent);
 }
 
-CweMapDecorator::~CweMapDecorator()
-{
-}
-
 void CweMapDecorator::handleDef(const Defect &orig)
 {
     if (d->cweMap.empty()) {

src/lib/cwe-mapper.hh

@@ -28,7 +28,7 @@
 class CweMap: public AbstractCsvParser {
     public:
         CweMap();
-        ~CweMap() override;
+        ~CweMap() override = default;
 
         bool assignCwe(Defect &def) const;
         bool empty() const;
@@ -45,7 +45,7 @@ class CweMapDecorator: public GenericAbstractFilter {
     public:
         /// @param writer the instance will be deleted on destruction
         CweMapDecorator(AbstractWriter *writer, bool silent);
-        ~CweMapDecorator() override;
+        ~CweMapDecorator() override = default;
 
         void handleDef(const Defect &def) override;