We have much better doc about Additional Software

wiki/src/doc/first_steps/persistence/warnings.mdwn

@@ -30,17 +30,6 @@ Furthermore, the anonymity of Tor and Tails relies on making it harder to
 distinguish one Tails user from another. <strong>Changing the default
 configurations can break your anonymity.</strong>
 
-<a id="installing_programs"></a>
-
-Installing additional programs
-==============================
-
-To protect your anonymity and leave no trace, Tails developers select and
-configure with care programs that work well together. **Installing additional
-programs may introduce unpredictable problems and may break the protections
-built-in Tails.** Tails developers may not want or may not be capable of helping
-you to solve those problems.
-
 <a id="browser_plugins"></a>
 
 Browser plugins