doc: Scute can automatically start the agent.

* README: Remove paragraph about the need to have an agent up and
running and the GPG_AGENT_INFO variable set.
* doc/manual/scute.texi: Likewise.
--

As all other components of GnuPG, Scute does not need the
GPG_AGENT_INFO variable anymore, and can start the agent on
demand.

Signed-off-by: Damien Goutte-Gattat <dgouttegattat@incenp.org>

README

@@ -57,11 +57,6 @@ visiting the preferences dialog in the "advanced" category, under
 "Security Devices".  There you can "load" the module from its
 installed path, e.g. "/usr/lib/libscute.so".
 
-Note that for the module load to complete successfully, the GPG Agent
-must be running and available.  On Unix systems this means that
-Mozilla needs to have the GPG_AGENT_INFO variable set correctly in its
-environment.
-
 
 Client Authentication
 =====================

doc/manual/scute.texi

@@ -258,14 +258,6 @@ configured:
 Scute uses the GnuPG 2.0 framework to access the OpenPGP card and for
 certificate management.  The minimum version required is 2.0.0.
 
-@strong{Caution:} A functional installation of GnuPG 2.0 requires a
-running GPG Agent process, which must be advertised to the applications
-via the @code{GPG_AGENT_INFO} environment variable.  Please make sure
-that you fulfill this requirement before using Scute in an application,
-running the Scute test suite, or preparing certificates as described in
-@ref{Certificate Preparation}.  @xref{Invoking GPG-AGENT, , , gnupg,
-Using the GNU Privacy Guard}, for details on how to run the GPG Agent.
-
 @item Pinentry
 Pinentry is a dependency of GnuPG 2.0, so it also needs to be installed
 with it.