wendelin: Remove bt5_list leftover

@rafael added this in 971d0bb7 (erp5: Make possible extent the list of
initial business templates to install), but we dropped that change while
merging erp5-cluster to master - see:

    6bbb61a8 "Merge branch 'master' into erp5-cluster", and
    e84d5e83 "Merge branch 'erp5-cluster'"

6bbb61a8 claimed that it

    Dropped commit 971d0bb7
    ("erp5: Make possible extent the list of initial business templates to install").

but it actually dropped changes only under stack/erp5/ , not software/wendelin/

Fix it.

/cc @rafael, @jm, @Tyagov
/reviewed-by TrustMe

software/wendelin/software.cfg

@@ -43,7 +43,6 @@ repository_id_list += wendelin
 [local-bt5-repository]
 # we need to override it
 list = ${erp5:location}/bt5 ${erp5:location}/product/ERP5/bootstrap ${wendelin:location}/bt5/
-bt5_list = erp5_full_text_myisam_catalog erp5_configurator_standard erp5_configurator_maxma_demo erp5_configurator_ung erp5_configurator_run_my_doc erp5_configurator_ebusiness_lotse erp5_wendelin_configurator
 
 [wendelin]
 <= erp5