unotools: avoid -Werror=deprecated-copy (GCC trunk towards GCC 9)

...by explicitly defaulting the copy/move functions (and, where needed in turn,
also a default ctor) for classes that have a user-declared dtor that does
nothing other than an implicitly-defined one would do, but needs to be user-
declared because it is virtual and potentially serves as a key function to
emit the vtable, or is non-public, etc.; and by removing explicitly user-
provided functions that do the same as their implicitly-defined counterparts,
but may prevent implicitly declared copy functions from being defined as non-
deleted in the future.  (Even if such a user-provided function was declared
non-inline in an include file, the apparently-used implicitly-defined copy
functions are already include, so why bother with non-inline functions.)

Change-Id: Iaa08ef916a2d266e011a2cb66592b377cb1eb23c
Reviewed-on: https://gerrit.libreoffice.org/58095
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

include/unotools/collatorwrapper.hxx

@@ -37,8 +37,6 @@ class UNOTOOLS_DLLPUBLIC CollatorWrapper
         CollatorWrapper (
                 const css::uno::Reference< css::uno::XComponentContext > &rxContext);
 
-        ~CollatorWrapper();
-
            sal_Int32
         compareString (
                 const OUString& s1, const OUString& s2) const;

include/unotools/compatibility.hxx

@@ -67,7 +67,6 @@ class UNOTOOLS_DLLPUBLIC SvtCompatibilityEntry
         };
 
         SvtCompatibilityEntry();
-        ~SvtCompatibilityEntry();
 
         static OUString getName( const Index rIdx );
 

include/unotools/configitem.hxx

@@ -165,6 +165,11 @@ namespace utl
         public:
             virtual ~ConfigItem() override;
 
+            ConfigItem(ConfigItem const &) = default;
+            ConfigItem(ConfigItem &&) = default;
+            ConfigItem & operator =(ConfigItem const &) = default;
+            ConfigItem & operator =(ConfigItem &&) = default;
+
             /** is called from the ConfigManager before application ends of from the
                 PropertyChangeListener if the sub tree broadcasts changes. */
             virtual void            Notify( const css::uno::Sequence<OUString>& aPropertyNames)=0;

include/unotools/confignode.hxx

@@ -221,10 +221,6 @@ namespace utl
             const bool i_bUpdatable
         );
 
-        /// copy ctor
-        OConfigurationTreeRoot(const OConfigurationTreeRoot& _rSource)
-            :OConfigurationNode(_rSource), m_xCommitter(_rSource.m_xCommitter) { }
-
         /** open a new top-level configuration node
 
             opens a new node which is the root if an own configuration sub tree. This is what "top level" means: The

unotools/source/config/compatibility.cxx

@@ -67,10 +67,6 @@ SvtCompatibilityEntry::SvtCompatibilityEntry()
     setDefaultEntry( false );
 }
 
-SvtCompatibilityEntry::~SvtCompatibilityEntry()
-{
-}
-
 OUString SvtCompatibilityEntry::getName( const Index rIdx )
 {
     static const char* sPropertyName[] =

unotools/source/i18n/collatorwrapper.cxx

@@ -30,10 +30,6 @@ CollatorWrapper::CollatorWrapper ( const uno::Reference< uno::XComponentContext
     mxInternationalCollator = i18n::Collator::create( rxContext );
 }
 
-CollatorWrapper::~CollatorWrapper()
-{
-}
-
 sal_Int32
 CollatorWrapper::compareString (const OUString& s1, const OUString& s2) const
 {