remove link to the already deleted propel1 bridge

W0rma · W0rma · commit 3709c5a80584 · 2020-02-20T20:59:54.000+01:00
diff --git a/form/type_guesser.rst b/form/type_guesser.rst
@@ -13,8 +13,6 @@ type guessers.
 
     Symfony also provides some form type guessers in the bridges:
 
-    * :class:`Symfony\\Bridge\\Propel1\\Form\\PropelTypeGuesser` provided by
-      the Propel1 bridge;
     * :class:`Symfony\\Bridge\\Doctrine\\Form\\DoctrineOrmTypeGuesser`
       provided by the Doctrine bridge.
 
