tdf#89329: use unique_ptr for pImpl in odbcconfig

Change-Id: Ieba9b60dfa8e61d41a18096e1bddc3c8c70b2e2f
Reviewed-on: https://gerrit.libreoffice.org/28113
Reviewed-by: Noel Grandin <noelgrandin@gmail.com>
Tested-by: Noel Grandin <noelgrandin@gmail.com>

dbaccess/source/ui/dlg/odbcconfig.cxx

@@ -147,7 +147,6 @@ OOdbcEnumeration::OOdbcEnumeration()
 OOdbcEnumeration::~OOdbcEnumeration()
 {
     freeEnv();
-    delete m_pImpl;
     unload();
 }
 

dbaccess/source/ui/dlg/odbcconfig.hxx

@@ -53,7 +53,7 @@ class OOdbcEnumeration
     oslGenericFunction  m_pDataSources;
 
 #endif
-    OdbcTypesImpl*  m_pImpl;
+    std::unique_ptr<OdbcTypesImpl>  m_pImpl;
         // needed because we can't have a member of type SQLHANDLE: this would require us to include the respective
         // ODBC file, which would lead to a lot of conflicts with other includes