Remove multirow montage code

There actually wasn't any point to it other than historically we
didn't need a loop to montage each row. That meant duplicate code and
sometimes lsix of fewer images would seem to start more slowly than
lsix of more images. Now images should start appearing immediately no
matter how many there are to show.

lsix

@@ -142,36 +142,21 @@ main() {
     [[ "$fontfamily" ]]  &&  imoptions+=" -font $fontfamily "
     [[ "$fontsize" ]] &&     imoptions+=" -pointsize $fontsize "
 
-    if [[ $# -le 21 ]]; then 
-	# Create an array of all filenames, interleaved with "-label:filename"
-	# E.g.,  '-label "foo"'  'foo.png'   '-label "bar"'  'bar.jpg'
-	declare -a labeledfiles
-	i=0
-	for arg; do
-	    labeledfiles[i++]="-label"
-	    labeledfiles[i++]="$(processlabel "$arg")"
-	    labeledfiles[i++]="$arg$resize"
+    # Create and display montages one row at a time. 
+    while [ $# -gt 0 ]; do
+        # While we still have images to process...
+	onerow=()
+	goal=$(($# - numtiles)) # How many tiles left after this row
+	while [ $# -gt 0  -a  $# -gt $goal ]; do
+	    len=${#onerow[@]}
+	    onerow[len++]="-label"
+	    onerow[len++]=$(processlabel "$1")
+	    onerow[len++]="$1"
+	    shift
 	done
-	# Only a few pictures to show, do it in one (multipage) chunk.
-	montage "${labeledfiles[@]}"  $imoptions gif:- \
+	montage "${onerow[@]}"  $imoptions gif:-  \
 	    | convert - -colors $numcolors sixel:-
-    else
-	# Lots of pictures, so show them a row at a time instead
-	# of taking a long time to make one huge montage.
-	while [ $# -gt 0 ]; do
-	    onerow=()
-	    goal=$(($# - numtiles)) # How many tiles left after this row
-	    while [ $# -gt 0  -a  $# -gt $goal ]; do
-		len=${#onerow[@]}
-		onerow[len++]="-label"
-		onerow[len++]=$(processlabel "$1")
-		onerow[len++]="$1"
-		shift
-	    done
-	    montage "${onerow[@]}"  $imoptions gif:-  \
-		| convert - -colors $numcolors sixel:-
-	done
-    fi    
+    done
 }
 
 processlabel() {