Make Firebird the (unconditional) default for new databases

60db3d2c "dbu: Set Firebird to default in
wizard.." had done so only "..in case experimental feature is checked in", but
Firebird has been made non-experimental meanwhile as documented at <https://
wiki.documentfoundation.org/index.php?title=ReleaseNotes/6.2&oldid=169290#Base>.

<https://bugs.documentfoundation.org/show_bug.cgi?id=123099> "Creating new
'HSQLDB Embedded' database immediately brings up migration-to-Firebird dialog"
discusses that changing the default to Firebird may be beneficial, so lets do
that unconditionally now.

But 60db3d2c had apparently made a mistake,
setting the value returned from OGeneralPageWizard::getDatasourceName to
"sdbc:embedded:firebird" even though the corresponding "Connect to an exisiting
database" list in the new database wizard doesn't even support that (instead of
"sdbc:firebird:", which matches "Firebird File" in that list).  Fixed that now.

(Curiously, ODsnTypeCollection::getEmbeddedDatabase would read a
DefaultEmbeddedDatabase value from the configuration before resorting to the
hardcoded default, but `git log -SDefaultEmbeddedDatabase` makes it look like
there has never been any code to actually write that setting.)

Change-Id: I49b7430f5f8288a6a166ed9184cb438208d56ca1
Reviewed-on: https://gerrit.libreoffice.org/67449
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

dbaccess/source/core/misc/dsntypes.cxx

@@ -25,7 +25,6 @@
 #include <stringconstants.hxx>
 #include <comphelper/documentconstants.hxx>
 #include <comphelper/string.hxx>
-#include <svtools/miscopt.hxx>
 
 namespace dbaccess
 {
@@ -300,12 +299,7 @@ OUString ODsnTypeCollection::getEmbeddedDatabase() const
     }
     if ( sEmbeddedDatabaseURL.isEmpty() )
     {
-        SvtMiscOptions aMiscOptions;
-        if( aMiscOptions.IsExperimentalMode() )
-            sEmbeddedDatabaseURL = "sdbc:embedded:firebird";
-        else
-            sEmbeddedDatabaseURL = "sdbc:embedded:hsqldb";
-
+        sEmbeddedDatabaseURL = "sdbc:embedded:firebird";
     }
 
     return sEmbeddedDatabaseURL;

dbaccess/source/ui/dlg/generalpage.cxx

@@ -41,7 +41,6 @@
 #include <comphelper/processfactory.hxx>
 #include <unotools/confignode.hxx>
 #include <osl/diagnose.h>
-#include <svtools/miscopt.hxx>
 #include <sal/log.hxx>
 
 namespace dbaui
@@ -597,11 +596,7 @@ namespace dbaui
         // Sets the default selected database on startup.
         if (m_pRB_CreateDatabase->IsChecked() )
         {
-            SvtMiscOptions aMiscOptions;
-            if( aMiscOptions.IsExperimentalMode() )
-                return m_pCollection->getTypeDisplayName( "sdbc:embedded:firebird" );
-            else
-                return m_pCollection->getTypeDisplayName( "jdbc:" );
+            return m_pCollection->getTypeDisplayName( "sdbc:firebird:" );
         }
 
         return OGeneralPage::getDatasourceName( _rSet );