Do not use indexing for single getToken call

Change-Id: Id751a88350dca032cabce56b2cf03e054894d5e8
Reviewed-on: https://gerrit.libreoffice.org/65659
Tested-by: Jenkins
Reviewed-by: Matteo Casalin <matteo.casalin@yahoo.com>

basctl/source/basicide/bastype3.cxx

@@ -315,8 +315,7 @@ SbxVariable* SbTreeListBox::FindVariable(weld::TreeIter* pEntry)
                 // extract the module name from the string like "Sheet1 (Example1)"
                 if( bDocumentObjects )
                 {
-                    sal_Int32 nIndex = 0;
-                    aName = aName.getToken( 0, ' ', nIndex );
+                    aName = aName.getToken( 0, ' ' );
                 }
                 pVar = static_cast<StarBASIC*>(pVar)->FindModule( aName );
                 break;