mppenc: removed obsolete cmake hack from .conf file

audio/mppenc/mppenc.conf

@@ -2,7 +2,7 @@
 # This copyright note is auto-generated by ./scripts/Create-CopyPatch.
 #
 # Filename: package/.../mppenc/mppenc.conf
-# Copyright (C) 2007 The OpenSDE Project
+# Copyright (C) 2007 - 2010 The OpenSDE Project
 #
 # More information can be found in the files COPYING and README.
 #
@@ -12,7 +12,6 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
-hook_add preconf 3 "cmake ."
 makeinstopt=
 hook_add postmake 4 'cp -fv src/mppenc $root$bindir'