Remove version from INSTALL, it is in setup.py

INSTALL

@@ -5,7 +5,7 @@ Prerequisites
 -------------
 
  * Python 2.4 or later (http://www.python.org/)
- * trytond 1.1.x (http://www.tryton.org/)
+ * trytond (http://www.tryton.org/)
  * trytond_account (http://www.tryton.org/)
 
 Installation
@@ -27,4 +27,4 @@ documentation:
   http://docs.python.org/inst/inst.html
 
 To use without installation, extract the archive into ``trytond/modules`` with
-the directory name account_de_skr03.
+the directory name account_de_skr03.