Revert "tdf#88206 Change use of cppu::WeakImplHelper*"

this doesn't build, I think mysqlc is considered !LIBO_INTERNAL_ONLY
seeing as its an extension

This reverts commit 2d2a3393.

Change-Id: I600b986632b90e482475628e09256ca5c2b0a6cf

mysqlc/source/mysqlc_resultsetmetadata.hxx

@@ -24,7 +24,7 @@
 
 #include <com/sun/star/sdbc/XResultSetMetaData.hpp>
 
-#include <cppuhelper/implbase.hxx>
+#include <cppuhelper/implbase1.hxx>
 #include <cppconn/resultset_metadata.h>
 
 namespace connectivity
@@ -36,7 +36,7 @@ namespace connectivity
 
         //************ Class: ResultSetMetaData
 
-        typedef ::cppu::WeakImplHelper< css::sdbc::XResultSetMetaData> OResultSetMetaData_BASE;
+        typedef ::cppu::WeakImplHelper1< css::sdbc::XResultSetMetaData> OResultSetMetaData_BASE;
 
         class OResultSetMetaData : public OResultSetMetaData_BASE
         {