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

...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 a dtor was
declared non-inline in an include file, the apparently-used implicitly-defined
copy functions are already inline, so why bother with a non-inline dtor.)

Change-Id: I8a31ab0c806cb0f3c226d217f152a205aff6c07f
Reviewed-on: https://gerrit.libreoffice.org/58065
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

basic/source/comp/scanner.cxx

@@ -53,9 +53,6 @@ SbiScanner::SbiScanner( const OUString& rBuf, StarBASIC* p ) : aBuf( rBuf )
     nSaveLineIdx = -1;
 }
 
-SbiScanner::~SbiScanner()
-{}
-
 void SbiScanner::LockColumn()
 {
     if( !nColLock++ )

basic/source/comp/token.cxx

@@ -217,11 +217,6 @@ SbiTokenizer::SbiTokenizer( const OUString& rSrc, StarBASIC* pb )
 {
 }
 
-SbiTokenizer::~SbiTokenizer()
-{
-}
-
-
 void SbiTokenizer::Push( SbiToken t )
 {
     if( ePush != NIL )

basic/source/inc/scanner.hxx

@@ -67,7 +67,6 @@ protected:
     void   GenError( ErrCode );
 public:
     SbiScanner( const OUString&, StarBASIC* = nullptr );
-   ~SbiScanner();
 
     void  EnableErrors()            { bError = false; }
     bool  IsHash()                  { return bHash;   }

basic/source/inc/token.hxx

@@ -111,7 +111,6 @@ protected:
     bool bErrorIsSymbol;            // Handle Error token as Symbol, not keyword
 public:
     SbiTokenizer( const OUString&, StarBASIC* = nullptr );
-   ~SbiTokenizer();
 
     bool IsEof()             { return bEof; }
     bool IsEos()             { return bEos; }