Contribs: don't disable VP8 decoder

(cherry picked from commit 8032442916b4d08884f60c4ae3341d879cd65b97)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

contrib/src/vpx/rules.mak

@@ -75,8 +75,8 @@ VPX_CONF := \
 	--disable-install-bins \
 	--disable-install-docs \
 	--disable-examples \
-	--disable-unit-tests \
-	--disable-vp8-decoder
+	--disable-unit-tests
+
 ifndef HAVE_WIN32
 VPX_CONF += --enable-pic
 endif