Remove unnecessary quotes.

Originally committed as revision 11176 to svn://svn.ffmpeg.org/ffmpeg/trunk

configure

@@ -1009,7 +1009,7 @@ for opt do
     ;;
     --disable-protocols) disable $PROTOCOL_LIST
     ;;
-    --disable-devices) disable "$INDEV_LIST $OUTDEV_LIST"
+    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
     ;;
     --enable-*=*|--disable-*=*)
     eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`